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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.

A270502 Sum of the sizes of the tenth blocks in all set partitions of {1,2,...,n}.

Table of values

n a(n)
10 1
11 57
12 1839
13 44346
14 891892
15 15848311
16 257647088
17 3921554995
18 56796169899
19 792102157717
20 10734723141617
21 142380931674179
22 1858965371935248
23 24006134113802346
24 307860388231938976
25 3934302726222970593
26 50254089923100713719
27 643301179860716506788

List of values

[1, 57, 1839, 44346, 891892, 15848311, 257647088, 3921554995, 56796169899, 792102157717, 10734723141617, 142380931674179, 1858965371935248, 24006134113802346, 307860388231938976, 3934302726222970593, 50254089923100713719, 643301179860716506788]

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

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