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.

A086608 Row sums of triangle A086606: the sum of the first n terms of the n-th self-convolution of the sequence formed by flattening triangle A086606.

Table of values

n a(n)
1 1
2 3
3 13
4 51
5 221
6 993
7 4530
8 20939
9 97285
10 455133
11 2140073
12 10109361
13 47933432
14 227989548
15 1087308518
16 5197510491
17 24895494553
18 119461041021
19 574151728723
20 2763435409221
21 13317800106750
22 64257410265249
23 310367127210417
24 1500548876309897
25 7261253691617671

List of values

[1, 3, 13, 51, 221, 993, 4530, 20939, 97285, 455133, 2140073, 10109361, 47933432, 227989548, 1087308518, 5197510491, 24895494553, 119461041021, 574151728723, 2763435409221, 13317800106750, 64257410265249, 310367127210417, 1500548876309897, 7261253691617671]

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

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