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.

A001456 Number of permutations of length n with longest increasing subsequence of length 5.

Table of values

n a(n)
5 1
6 25
7 421
8 6105
9 83029
10 1100902
11 14516426
12 192422979
13 2579725656
14 35098717902
15 485534447114
16 6835409506841
17 97966603326993
18 1429401763567226
19 21226755241285022
20 320692032888290224
21 4926576077469905280
22 76913478420068425515
23 1219520974164038038455

List of values

[1, 25, 421, 6105, 83029, 1100902, 14516426, 192422979, 2579725656, 35098717902, 485534447114, 6835409506841, 97966603326993, 1429401763567226, 21226755241285022, 320692032888290224, 4926576077469905280, 76913478420068425515, 1219520974164038038455]

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

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