cp's OEIS Frontend

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.

A163031 Number of n X 5 binary arrays with all 1s connected and a path of 1s from top row to bottom row.

Table of values

n a(n)
1 15
2 245
3 5191
4 104989
5 2075271
6 40792921
7 801218515
8 15736428305
9 309080891641
10 6070750256417
11 119237718452471
12 2341990743046197
13 45999883370408813
14 903500281246849523
15 17745974522766912147
16 348555078644003475079

List of values

[15, 245, 5191, 104989, 2075271, 40792921, 801218515, 15736428305, 309080891641, 6070750256417, 119237718452471, 2341990743046197, 45999883370408813, 903500281246849523, 17745974522766912147, 348555078644003475079]

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

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