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.

A132057 A convolution triangle of numbers obtained from A034904.

Table of values

n a(n)
1 1
2 28
3 1
4 980
5 56
6 1
7 37730
8 2744
9 84
10 1
11 1531838
12 130340
13 5292
14 112
15 1
16 64337196
17 6136956
18 299782
19 8624
20 140
21 1
22 2766499428
23 288408120
24 16120314
25 568008
26 12740
27 168
28 1
29 121034349975
30 13561837212
31 841627332
32 34401528
33 956970
34 17640
35 196
36 1

List of values

[1, 28, 1, 980, 56, 1, 37730, 2744, 84, 1, 1531838, 130340, 5292, 112, 1, 64337196, 6136956, 299782, 8624, 140, 1, 2766499428, 288408120, 16120314, 568008, 12740, 168, 1, 121034349975, 13561837212, 841627332, 34401528, 956970, 17640, 196, 1]

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

Content is available under The OEIS End-User License Agreement.