Half the number of lower triangles of a 3X3 0..n array with no element equal to the average of its horizontal and vertical neighbors.

A194616

Half the number of lower triangles of a 3X3 0..n array with no element equal to the average of its horizontal and vertical neighbors.

Terms

    a(0) =5a(1) =96a(2) =775a(3) =3638a(4) =12438a(5) =34247a(6) =82057a(7) =175111a(8) =344173a(9) =630849a(10) =1094898a(11) =1812250a(12) =2887675a(13) =4445870a(14) =6653357a(15) =9703428a(16) =13843860a(17) =19356297a(18) =26596343a(19) =35955433a(20) =47921851a(21) =63027619a(22) =81920692a(23) =105300352a(24) =134012453a(25) =168951880a(26) =211194991

External references