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.

A136257 Number of possible plays on the n-th move in Mirror Chess in which Black's play is always the mirror image of White (White must either mate or play such that Black can mirror the move).

Table of values

n a(n)
0 1
1 20
2 437
3 10461
4 270726
5 7456194
6 215666696
7 6485151199
8 201183083017
9 6401210746834
10 207969967925893
11 6875935591529309

List of values

[1, 20, 437, 10461, 270726, 7456194, 215666696, 6485151199, 201183083017, 6401210746834, 207969967925893, 6875935591529309]

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

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