A symmetrical triangle sequence:q=4;c(n,q)=Product[1 - q^i, {i, 1, n}];t(n,m,q)=-Eulerian[n + 1, m] + 2*c(n, q)/(c(m, q)*c(n - m, q)).

A176429

A symmetrical triangle sequence:q=4;c(n,q)=Product[1 - q^i, {i, 1, n}];t(n,m,q)=-Eulerian[n + 1, m] + 2*c(n, q)/(c(m, q)*c(n - m, q)).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =6a(5) =1a(6) =1a(7) =31a(8) =31a(9) =1a(10) =1a(11) =144a(12) =648a(13) =144a(14) =1a(15) =1a(16) =625a(17) =11292a(18) =11292a(19) =625a(20) =1a(21) =1a(22) =2610a(23) =184995a(24) =751194a(25) =184995a(26) =2610a(27) =1a(28) =1a(29) =10675

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