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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A225994 Number of pairs of orthogonal (-2,5) vectors of length 7*n.

Table of values

n a(n)
1 378
2 5133128
3 81705087744
4 983771662124160
5 13027612739061516288
6 180842352214339004973056
7 2505372582582745606695616512
8 35065654463193295271305370959872
9 495605164965018396615832445084368896

List of values

[378, 5133128, 81705087744, 983771662124160, 13027612739061516288, 180842352214339004973056, 2505372582582745606695616512, 35065654463193295271305370959872, 495605164965018396615832445084368896]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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