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.

A266740 Number of words on {1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,...,n,n,n,n} avoiding the pattern 1234.

Table of values

n a(n)
0 1
1 1
2 70
3 34650
4 16140983
5 8854463421
6 5532980565456
7 3798011394008444
8 2798461806432513085
9 2179251644112128926809
10 1774029308605731224234922
11 1497612094060753803137726582
12 1303178757814574200714348639251
13 1163471249071555286949793002571005

List of values

[1, 1, 70, 34650, 16140983, 8854463421, 5532980565456, 3798011394008444, 2798461806432513085, 2179251644112128926809, 1774029308605731224234922, 1497612094060753803137726582, 1303178757814574200714348639251, 1163471249071555286949793002571005]

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

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