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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.

A225997 Number of pairs of orthogonal (-1,6) vectors of length 7*n.

Table of values

n a(n)
1 231
2 1724086
3 23850799560
4 182201755171800
5 1431877318884329856
6 13044657178246280571712
7 116927857061958334999652864
8 1034834452512042254405345443200
9 9329147292031736106743104217184000

List of values

[231, 1724086, 23850799560, 182201755171800, 1431877318884329856, 13044657178246280571712, 116927857061958334999652864, 1034834452512042254405345443200, 9329147292031736106743104217184000]

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

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