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List of all contributors to the website
Contributor
Nature of contribution
Moa Apagodu Corrected an error we had in an explanation of the problems that arise using Gosper's Algorithm.
Bo Brinkman
Communicated the lovely Identity #3500009, which we haven't found in the literature yet, so he may be the discoverer. (Knock on wood.)
Vesselin Dimitrov Sent in both a factorization identity from Granville and several of his own.
Mark Eggensperger
Suggested the inclusion of the pattern for turning a row of Pascal's Triangle into a power of 11.
Ira Gessel Corrected an error in the statement of Sperner's Theorem we had on the identities page.
Gottfried Helms
Communicated Identity #3500013, the natural log of the Pascal's Triangle matrix, and Identity #3900054, another matrix identity connecting the binomial coefficients to the Delannoy numbers.
Sean A. Irvine
Corrected an error in Identity #3700004.  Good on ya, Kiwis!
Dan Jurca Communicated Identity #5100007.
Dan Kalman Communicated the matrix identity #3900049.
Isaiah Lankham Sent in several identities, most notably in the Factorization category.
John L. Leonard
Sent in two identities, #3700012 and #3700013, which are derived in the paper "A Binomial Identity, via Derangements" by Chao, DesJarlais and Leonard.
Andrés Masegosa
Sent in the identity #3100017, a generalization of Vandemonde's Convolution he independently rediscovered.  (Independently rediscovering (relatively) well-known things is also a hobby of mine.)
Russ Merris Told me that the name Christmas Stocking Theorem, which I thought was common, was actually coined by our mutual friend, the late Ken Rebman.
Chris Morgan
Suggested including the information about B-splines and the binomial coefficients.
Augustine Munagi
Corrected an error we had in Identity #3500004.  Very keen observation.
Yogy Namara
Corrected an error we had in Identity #1300002.  Those darn plus and minus signs!
Steven Poon
Communicated Identity #3700014.
Sebastián Martín Ruiz
Corrected an error in Identity #3900005 and communicated Identities #3610008, #5100013 and #3900053.  ¡Gracias, Sebastián!
Daniel Soll
Communicated Identity #3400002, based on the coefficients from the Lucas polynomials; we have not found elsewhere in the literature, and so he may be the discoverer.  As with Bo Brinkman above, we hope for the best.
Stuart P. Smith
Communicated several identities from the Gradshteyn and Ryzhik book.
Jodi Soares She drew our cool logo, based on vague suggestions from the author of the page.
Rick West Rick showed a nice proof of Identity #2200002 in a class at UC Davis.