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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.

A124558 Secondary diagonal of table A124550; a(n) = A124550(n+1,n).

Table of values

n a(n)
0 1
1 2
2 15
3 204
4 4345
5 133212
6 5621371
7 319211576
8 24097683942
9 2399637270890
10 313606810455697
11 53638534570897308
12 11984755429488415041
13 3491974842611221434342
14 1324861497596788043284935

List of values

[1, 2, 15, 204, 4345, 133212, 5621371, 319211576, 24097683942, 2399637270890, 313606810455697, 53638534570897308, 11984755429488415041, 3491974842611221434342, 1324861497596788043284935]

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

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