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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.

A362635 Number of partitions of [n] whose blocks are ordered with increasing least elements and where block i has size at least i.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 5
5 12
6 31
7 97
8 351
9 1318
10 4963
11 19391
12 82531
13 386704
14 1926907
15 9811733
16 50252175
17 261462430
18 1415025895
19 8118274255
20 49355434511
21 312266428040
22 2012834117143
23 13055850467371
24 85215848844559
25 565353777291346
26 3866868949795579
27 27548261709035105

List of values

[1, 1, 1, 2, 5, 12, 31, 97, 351, 1318, 4963, 19391, 82531, 386704, 1926907, 9811733, 50252175, 261462430, 1415025895, 8118274255, 49355434511, 312266428040, 2012834117143, 13055850467371, 85215848844559, 565353777291346, 3866868949795579, 27548261709035105]

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

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