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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.

A243316 Number of ways to reciprocally link elements of an n X 10 array either to themselves or to exactly one king-move neighbor.

Table of values

n a(n)
0 1
1 89
2 1009056
3 3711809483
4 18283618480037
5 84080327982982848
6 393283923444213896309
7 1832013557267266441097285
8 8542571199105608333942735840
9 39823725482559144291828665014967
10 185661218973084382181156348510614065
11 865553976307450198923428125167024054656

List of values

[1, 89, 1009056, 3711809483, 18283618480037, 84080327982982848, 393283923444213896309, 1832013557267266441097285, 8542571199105608333942735840, 39823725482559144291828665014967, 185661218973084382181156348510614065, 865553976307450198923428125167024054656]

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

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