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.

A264896 Number of permutations of [n] with exactly one occurrence of the consecutive pattern 45321.

Table of values

n a(n)
5 1
6 12
7 126
8 1344
9 15110
10 180736
11 2308548
12 31481472
13 457520055
14 7068885600
15 115808906178
16 2006533573632
17 36674815572540
18 705453732298240
19 14248697953325160
20 301564509817810944
21 6674811622886359005
22 154228999030804811520
23 3713903962096887036390

List of values

[1, 12, 126, 1344, 15110, 180736, 2308548, 31481472, 457520055, 7068885600, 115808906178, 2006533573632, 36674815572540, 705453732298240, 14248697953325160, 301564509817810944, 6674811622886359005, 154228999030804811520, 3713903962096887036390]

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

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