Triangle read by rows, 3^k*s_3(n, k) where s_m(n, k) are the Stirling-Frobenius cycle numbers of order m; n >= 0, k >= 0.

A225477

Triangle read by rows, 3^k*s_3(n, k) where s_m(n, k) are the Stirling-Frobenius cycle numbers of order m; n >= 0, k >= 0.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =10a(4) =21a(5) =9a(6) =80a(7) =198a(8) =135a(9) =27a(10) =880a(11) =2418a(12) =2079a(13) =702a(14) =81a(15) =12320a(16) =36492a(17) =36360a(18) =16065a(19) =3240a(20) =243a(21) =209440a(22) =657324a(23) =727596a(24) =382185a(25) =103275a(26) =13851a(27) =729a(28) =4188800a(29) =13774800

External references