Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any north, west or southwest neighbors modulo 5 and the upper left element equal to 0.
A267345
Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any north, west or southwest neighbors modulo 5 and the upper left element equal to 0.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =2a(4) =36a(5) =264a(6) =1223a(7) =4462a(8) =14328a(9) =55017a(10) =305712a(11) =2436601a(12) =19006535a(13) =123949281a(14) =690092171a(15) =3461268856a(16) =16984062800a(17) =90079107517a(18) =548487219149
External references
- oeis: A267345