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.

A280886 Number of set partitions of [n] into exactly eight blocks where sizes of distinct blocks are coprime.

Table of values

n a(n)
8 1
9 36
10 120
11 4950
12 792
13 97812
14 171600
15 8384805
16 972400
17 233084280
18 14734512
19 2345611788
20 5678805120
21 343522980720
22 1221436128
23 13374187844391
24 185339038104
25 22390031621100
26 18903665638000
27 5148292859617050
28 118997530835040
29 97446697480400580
30 78169931776006200

List of values

[1, 36, 120, 4950, 792, 97812, 171600, 8384805, 972400, 233084280, 14734512, 2345611788, 5678805120, 343522980720, 1221436128, 13374187844391, 185339038104, 22390031621100, 18903665638000, 5148292859617050, 118997530835040, 97446697480400580, 78169931776006200]

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

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