The sequence is a factorization of a designed multi-bifurcative triangle sequence: t(n,m)=A155582(n,m); f(n, m) = If[m <= Floor[n/2], f(m, 1)*f(n - m, 1)*t(n, m)].

A155583

The sequence is a factorization of a designed multi-bifurcative triangle sequence: t(n,m)=A155582(n,m); f(n, m) = If[m <= Floor[n/2], f(m, 1)*f(n - m, 1)*t(n, m)].

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =12a(5) =28a(6) =36a(7) =36a(8) =216a(9) =216a(10) =720a(11) =1512a(12) =1512a(13) =2520a(14) =12096a(15) =12096a(16) =12096a(17) =10080a(18) =60480a(19) =108864a(20) =108864a(21) =54432a(22) =604800a(23) =604800a(24) =1088640a(25) =544320a(26) =326592

External references