Number of n X 4 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself.
A266127
Number of n X 4 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself.
Terms
- a(0) =5a(1) =49a(2) =117a(3) =572a(4) =4336a(5) =19750a(6) =102201a(7) =620508a(8) =3041449a(9) =16217839a(10) =93738044a(11) =476322405a(12) =2546428711a(13) =14301936049a(14) =74467601183a(15) =398781566199
External references
- oeis: A266127