T(n, k) = (3^(-k)*n!*2^(n - 3*k))/(k!*(n - 3*k)!), for n >= 0 and 0 <= k <= floor(n/3). Triangle read by rows.

A344915

T(n, k) = (3^(-k)*n!*2^(n - 3*k))/(k!*(n - 3*k)!), for n >= 0 and 0 <= k <= floor(n/3). Triangle read by rows.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =8a(4) =2a(5) =16a(6) =16a(7) =32a(8) =80a(9) =64a(10) =320a(11) =40a(12) =128a(13) =1120a(14) =560a(15) =256a(16) =3584a(17) =4480a(18) =512a(19) =10752a(20) =26880a(21) =2240a(22) =1024a(23) =30720a(24) =134400a(25) =44800a(26) =2048a(27) =84480a(28) =591360a(29) =492800

External references