Number of lower triangles of a 7 X 7 0..n array with each element differing from all of its horizontal and vertical neighbors by one.
A195003
Number of lower triangles of a 7 X 7 0..n array with each element differing from all of its horizontal and vertical neighbors by one.
Terms
- a(0) =2a(1) =69632a(2) =641376a(3) =2059822a(4) =3816148a(5) =5740166a(6) =7686580a(7) =9643120a(8) =11600228a(9) =13557614a(10) =15515004a(11) =17472396a(12) =19429788a(13) =21387180a(14) =23344572a(15) =25301964a(16) =27259356a(17) =29216748a(18) =31174140a(19) =33131532a(20) =35088924a(21) =37046316a(22) =39003708a(23) =40961100a(24) =42918492
External references
- oeis: A195003