Number of n X 1 arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random 0..3 n X 1 array.
A218051
Number of n X 1 arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random 0..3 n X 1 array.
Terms
- a(0) =4a(1) =4a(2) =16a(3) =36a(4) =94a(5) =236a(6) =602a(7) =1528a(8) =3882a(9) =9858a(10) =25038a(11) =63592a(12) =161514a(13) =410218a(14) =1041884a(15) =2646208a(16) =6720920a(17) =17069998a(18) =43354902a(19) =110114102a(20) =279671154a(21) =710317326a(22) =1804085608a(23) =4582071648a(24) =11637685314a(25) =29557748082a(26) =75071670020a(27) =190669317026
External references
- oeis: A218051