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.

A321114 Number of permutations p of [n] such that in 0p the largest up-jump equals seven and no down-jump is larger than 2.

Table of values

n a(n)
7 74
8 528
9 3550
10 23284
11 151096
12 974472
13 6252218
14 39892080
15 253727936
16 1611713082
17 10230277342
18 64911693746
19 411813289010
20 2612751224650
21 16579665387410
22 105238154698686
23 668214471729004
24 4244427360639456
25 26970709343926262
26 171451330997483406
27 1090351846894142818

List of values

[74, 528, 3550, 23284, 151096, 974472, 6252218, 39892080, 253727936, 1611713082, 10230277342, 64911693746, 411813289010, 2612751224650, 16579665387410, 105238154698686, 668214471729004, 4244427360639456, 26970709343926262, 171451330997483406, 1090351846894142818]

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

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