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.

A201693 Number of permutations that avoid the consecutive pattern 2413.

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 23
5 110
6 632
7 4237
8 32465
9 279828
10 2679950
11 28232972
12 324470844
13 4039771856
14 54165468774
15 778128659247
16 11923645252411
17 194131328012012
18 3346615262190736
19 60897160676005110
20 1166446154857250412
21 23459656378909613446
22 494290181112325561351

List of values

[1, 1, 2, 6, 23, 110, 632, 4237, 32465, 279828, 2679950, 28232972, 324470844, 4039771856, 54165468774, 778128659247, 11923645252411, 194131328012012, 3346615262190736, 60897160676005110, 1166446154857250412, 23459656378909613446, 494290181112325561351]

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

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