Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..2 2 X n array.
A219129
Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..2 2 X n array.
Terms
- a(0) =9a(1) =15a(2) =87a(3) =205a(4) =899a(5) =2521a(6) =9709a(7) =29747a(8) =107261a(9) =344055a(10) =1199763a(11) =3940341a(12) =13507819a(13) =44905025a(14) =152598957a(15) =510467683a(16) =1726955485a(17) =5795447559a(18) =19561570195a(19) =65753998917a(20) =221680877531a(21) =745782497713
External references
- oeis: A219129