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.

A188446 Number of (4*n) X n binary arrays with nonzero rows in decreasing order and 4 ones in every column.

Table of values

n a(n)
0 1
1 0
2 0
3 1
4 278
5 67198
6 24537905
7 13744869502
8 11385203921707
9 13429702800066408
10 21828741452174445770
11 47540906064229854124913
12 135469436416591290078176485
13 494882516747849393466094870718
14 2277287830010010200588821272208162
15 13000224127787800362702159372817442122

List of values

[1, 0, 0, 1, 278, 67198, 24537905, 13744869502, 11385203921707, 13429702800066408, 21828741452174445770, 47540906064229854124913, 135469436416591290078176485, 494882516747849393466094870718, 2277287830010010200588821272208162, 13000224127787800362702159372817442122]

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

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