Irregular triangle, read by rows, of coefficients of polynomials that are the "nonstandard" factor of polynomials yielding the columns (up to sign) of triangle A290053, beginning with column 3.

A290761

Irregular triangle, read by rows, of coefficients of polynomials that are the "nonstandard" factor of polynomials yielding the columns (up to sign) of triangle A290053, beginning with column 3.

Terms

    a(0) =3a(1) =5a(2) =-6a(3) =16a(4) =1a(5) =7a(6) =16a(7) =28a(8) =0a(9) =15a(10) =225a(11) =1265a(12) =3707a(13) =7120a(14) =4900a(15) =-6480a(16) =27648a(17) =3a(18) =83a(19) =961a(20) =6201a(21) =24708a(22) =60700a(23) =87968a(24) =85056a(25) =0a(26) =63a(27) =2457a(28) =41580a(29) =404866

External references