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.

A271764 Number of set partitions of [n] with minimal block length multiplicity equal to four.

Table of values

n a(n)
4 1
5 0
6 0
7 0
8 105
9 0
10 0
11 0
12 67375
13 135135
14 1261260
15 675675
16 50925875
17 97847750
18 703993290
19 6215737710
20 228687298476
21 58017429575
22 11262925616250
23 72813288304295
24 2841531210935725
25 11311740884766630
26 252469888906590355
27 2207276997956560530
28 28579415631325499655

List of values

[1, 0, 0, 0, 105, 0, 0, 0, 67375, 135135, 1261260, 675675, 50925875, 97847750, 703993290, 6215737710, 228687298476, 58017429575, 11262925616250, 72813288304295, 2841531210935725, 11311740884766630, 252469888906590355, 2207276997956560530, 28579415631325499655]

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

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