Triangle, read by rows, equal to P^4, where triangle P = A135880; also equals Q^2, where triangle Q = P^2 = A135885.

A135891

Triangle, read by rows, equal to P^4, where triangle P = A135880; also equals Q^2, where triangle Q = P^2 = A135885.

Terms

    a(0) =1a(1) =4a(2) =1a(3) =20a(4) =8a(5) =1a(6) =126a(7) =64a(8) =12a(9) =1a(10) =980a(11) =580a(12) =132a(13) =16a(14) =1a(15) =9186a(16) =6064a(17) =1554a(18) =224a(19) =20a(20) =1a(21) =101492a(22) =72832a(23) =20260a(24) =3240a(25) =340a(26) =24a(27) =1a(28) =1296934a(29) =995050

External references