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.

A294052 Number of set partitions of [n] such that the maximal absolute difference between consecutive elements within a block equals three.

Table of values

n a(n)
4 2
5 13
6 61
7 248
8 935
9 3368
10 11777
11 40347
12 136214
13 454922
14 1507000
15 4961100
16 16253188
17 53045703
18 172607505
19 560317916
20 1815445901
21 5873136282
22 18976870985
23 61256217631
24 197573796328
25 636837047532
26 2051636248268
27 6606758265032
28 21268025275930
29 68445465415825

List of values

[2, 13, 61, 248, 935, 3368, 11777, 40347, 136214, 454922, 1507000, 4961100, 16253188, 53045703, 172607505, 560317916, 1815445901, 5873136282, 18976870985, 61256217631, 197573796328, 636837047532, 2051636248268, 6606758265032, 21268025275930, 68445465415825]

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

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