A242542 - cp's OEIS frontend

A242542 Number of length n+3 0..n arrays with no four elements in a row with pattern aabb (possibly a=b) and new values 0..n introduced in 0..n order.

n	a(n)
1	6
2	32
3	150
4	690
5	3311
6	16968
7	93103
8	544920
9	3386262
10	22243902
11	153850981
12	1116625523
13	8478969009
14	67185160511
15	554235206898
16	4750165417926
17	42219358673456
18	388485398829204
19	3695187060252009
20	36282147267628868

[6, 32, 150, 690, 3311, 16968, 93103, 544920, 3386262, 22243902, 153850981, 1116625523, 8478969009, 67185160511, 554235206898, 4750165417926, 42219358673456, 388485398829204, 3695187060252009, 36282147267628868]

cp's OEIS Frontend

A242542 Number of length n+3 0..n arrays with no four elements in a row with pattern aabb (possibly a=b) and new values 0..n introduced in 0..n order.

Table of values

List of values