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.

A271467 Number of set partitions of [2n] such that n is the largest element of the last block.

Table of values

n a(n)
1 0
2 1
3 10
4 149
5 3149
6 88772
7 3195161
8 142084077
9 7611839904
10 481614364251
11 35417157810681
12 2987457716884346
13 285867917955683723
14 30741794345071162069
15 3685435185993122202106
16 489101076818110701758097
17 71414666988339306082779537
18 11410190978037926887950636172

List of values

[0, 1, 10, 149, 3149, 88772, 3195161, 142084077, 7611839904, 481614364251, 35417157810681, 2987457716884346, 285867917955683723, 30741794345071162069, 3685435185993122202106, 489101076818110701758097, 71414666988339306082779537, 11410190978037926887950636172]

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

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