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.

A225968 Number of permutations of [n] having exactly 7 strong fixed blocks.

Table of values

n a(n)
19 1
20 25
21 375
22 4439
23 46240
24 449376
25 4226604
26 39474916
27 373382588
28 3635491860
29 36957484104
30 397181210056
31 4560293779650
32 56383382731802
33 754184534296262
34 10926207562498862
35 171119131459887864
36 2885501334257214456
37 52124282589435604908
38 1003403354618592544692

List of values

[1, 25, 375, 4439, 46240, 449376, 4226604, 39474916, 373382588, 3635491860, 36957484104, 397181210056, 4560293779650, 56383382731802, 754184534296262, 10926207562498862, 171119131459887864, 2885501334257214456, 52124282589435604908, 1003403354618592544692]

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

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