Triangular matrix, read by rows, equal to the matrix square of A102225, such that the first differences of row k forms row (k+1) of A102225.

A102228

Triangular matrix, read by rows, equal to the matrix square of A102225, such that the first differences of row k forms row (k+1) of A102225.

Terms

    a(0) =1a(1) =2a(2) =1a(3) =3a(4) =-2a(5) =1a(6) =7a(7) =-13a(8) =6a(9) =1a(10) =17a(11) =-34a(12) =23a(13) =-10a(14) =1a(15) =75a(16) =-214a(17) =224a(18) =-121a(19) =22a(20) =1a(21) =346a(22) =-1080a(23) =1361a(24) =-712a(25) =55a(26) =-42a(27) =1a(28) =4874a(29) =-17748

External references