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.

A250675 Number of (n+1)X(7+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.

Table of values

n a(n)
1 3321772
2 115965426
3 2996016017
4 61498698426
5 1070591197687
6 15971487229178
7 210335029800118
8 2486539928867930
9 26773801460595558
10 265593229627937954
11 2450139707701747024
12 21184357574916340526
13 172798870644903483178

List of values

[3321772, 115965426, 2996016017, 61498698426, 1070591197687, 15971487229178, 210335029800118, 2486539928867930, 26773801460595558, 265593229627937954, 2450139707701747024, 21184357574916340526, 172798870644903483178]

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

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