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.

A280885 Number of set partitions of [n] into exactly seven blocks where sizes of distinct blocks are coprime.

Table of values

n a(n)
7 1
8 28
9 84
10 2730
11 462
12 45276
13 73788
14 2849847
15 365365
16 69293224
17 4913272
18 623100660
19 1424294340
20 67844069880
21 333126696
22 2369968906305
23 38838853515
24 4030108023172
25 3637504185700
26 767066790520030
27 21258921662550
28 13536000500234940
29 10485013256679780

List of values

[1, 28, 84, 2730, 462, 45276, 73788, 2849847, 365365, 69293224, 4913272, 623100660, 1424294340, 67844069880, 333126696, 2369968906305, 38838853515, 4030108023172, 3637504185700, 767066790520030, 21258921662550, 13536000500234940, 10485013256679780]

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

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