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.

A321116 Number of permutations p of [n] such that in 0p the largest up-jump equals nine xx and no down-jump is larger than 2.

Table of values

n a(n)
9 672
10 5454
11 40272
12 283688
13 1948408
14 13188482
15 88469166
16 589852620
17 3914957358
18 25886899652
19 170722453774
20 1123938295984
21 7390061858416
22 48546948619410
23 318711158282218
24 2091405520367970
25 13719823343200698
26 89986405527666712
27 590148303249975384

List of values

[672, 5454, 40272, 283688, 1948408, 13188482, 88469166, 589852620, 3914957358, 25886899652, 170722453774, 1123938295984, 7390061858416, 48546948619410, 318711158282218, 2091405520367970, 13719823343200698, 89986405527666712, 590148303249975384]

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

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