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.

A047911 Number of sequences with n copies each of 1, 2, 3 and longest increasing subsequence of length 3.

Table of values

n a(n)
1 1
2 47
3 1306
4 31451
5 729811
6 16928840
7 397222288
8 9450343019
9 227749730869
10 5549991941777
11 136518857557006
12 3384666013449308
13 84477567863100244
14 2120568396642137720
15 53494945450407470656
16 1355345188539405424235
17 34469856482096766083833
18 879619709716580703808739

List of values

[1, 47, 1306, 31451, 729811, 16928840, 397222288, 9450343019, 227749730869, 5549991941777, 136518857557006, 3384666013449308, 84477567863100244, 2120568396642137720, 53494945450407470656, 1355345188539405424235, 34469856482096766083833, 879619709716580703808739]

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

Content is available under The OEIS End-User License Agreement.