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.

A118352 Semi-diagonal (one row below central terms) of pendular triangle A118350 and equal to the self-convolution of the central terms (A118351).

Table of values

n a(n)
0 1
1 2
2 13
3 96
4 770
5 6530
6 57612
7 523446
8 4864795
9 46032288
10 441981816
11 4295393886
12 42172388820
13 417668676206
14 4167719552099
15 41861139949200
16 422890327921650
17 4294027462637528
18 43801007565527184
19 448625344231794792

List of values

[1, 2, 13, 96, 770, 6530, 57612, 523446, 4864795, 46032288, 441981816, 4295393886, 42172388820, 417668676206, 4167719552099, 41861139949200, 422890327921650, 4294027462637528, 43801007565527184, 448625344231794792]

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

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