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.

A137572 The first upper diagonal of square array A137570; equals the convolution of the main diagonal A137571 with A002293.

Table of values

n a(n)
0 1
1 3
2 16
3 100
4 681
5 4908
6 36842
7 285158
8 2260257
9 18257902
10 149769225
11 1244277499
12 10448404901
13 88538107802
14 756153001241
15 6501989278168
16 56244305146039
17 489111092027854
18 4273491476147117
19 37496699100314116
20 330261353255659842

List of values

[1, 3, 16, 100, 681, 4908, 36842, 285158, 2260257, 18257902, 149769225, 1244277499, 10448404901, 88538107802, 756153001241, 6501989278168, 56244305146039, 489111092027854, 4273491476147117, 37496699100314116, 330261353255659842]

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

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