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.

A263887 Number of permutations of [n] containing exactly three occurrences of the consecutive pattern 132.

Table of values

n a(n)
7 15
8 576
9 13572
10 259968
11 4532034
12 75929856
13 1259571660
14 21052915200
15 358291184565
16 6248298977280
17 112089186363960
18 2073140406374400
19 39582481045276260
20 780630651563728896
21 15904712294529556680
22 334724021030855393280
23 7274246960518735730715

List of values

[15, 576, 13572, 259968, 4532034, 75929856, 1259571660, 21052915200, 358291184565, 6248298977280, 112089186363960, 2073140406374400, 39582481045276260, 780630651563728896, 15904712294529556680, 334724021030855393280, 7274246960518735730715]

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

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