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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.

A384499 Number of paths from the top to bottom of a 3-dimensional triangular bipyramidal graph of height 2n, with no repeated vertices, and no upward moves.

Table of values

n a(n)
0 1
1 15
2 11475
3 1093007025
4 52244816853213675
5 6472823166678668309527843125
6 11561557982049161046080105648122197757331625
7 1687343403738428640604090554388660433120115565168405371811095975

List of values

[1, 15, 11475, 1093007025, 52244816853213675, 6472823166678668309527843125, 11561557982049161046080105648122197757331625, 1687343403738428640604090554388660433120115565168405371811095975]

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

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