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.

A000275 Coefficients of a Bessel function (reciprocal of J_0(z)); also pairs of permutations with rise/rise forbidden.

Table of values

n a(n)
0 1
1 1
2 3
3 19
4 211
5 3651
6 90921
7 3081513
8 136407699
9 7642177651
10 528579161353
11 44237263696473
12 4405990782649369
13 515018848029036937
14 69818743428262376523
15 10865441556038181291819
16 1923889742567310611949459
17 384565973956329859109177427
18 86180438505835750284241676121

List of values

[1, 1, 3, 19, 211, 3651, 90921, 3081513, 136407699, 7642177651, 528579161353, 44237263696473, 4405990782649369, 515018848029036937, 69818743428262376523, 10865441556038181291819, 1923889742567310611949459, 384565973956329859109177427, 86180438505835750284241676121]

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

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