Fermat coefficients.

Terms

a(0) =1a(1) =12a(2) =66a(3) =245a(4) =715a(5) =1768a(6) =3876a(7) =7752a(8) =14421a(9) =25300a(10) =42287a(11) =67860a(12) =105183a(13) =158224a(14) =231880a(15) =332112a(16) =466089a(17) =642341a(18) =870922a(19) =1163580a(20) =1533939a(21) =1997688a(22) =2572780a(23) =3279640a(24) =4141382a(25) =5184036a(26) =6436782a(27) =7932196a(28) =9706503a(29) =11799840