A symmetrical triangle:q=2;c(n,q)=Product[1 - q^i, {i, 1, n}];t(n,m,q)=A060187(n,m)-c(n,q)/(c(m,q)*c(n-m,q))+1.
A176467
A symmetrical triangle:q=2;c(n,q)=Product[1 - q^i, {i, 1, n}];t(n,m,q)=A060187(n,m)-c(n,q)/(c(m,q)*c(n-m,q))+1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =17a(8) =17a(9) =1a(10) =1a(11) =62a(12) =196a(13) =62a(14) =1a(15) =1a(16) =207a(17) =1528a(18) =1528a(19) =207a(20) =1a(21) =1a(22) =660a(23) =9893a(24) =22154a(25) =9893a(26) =660a(27) =1a(28) =1a(29) =2053
External references
- oeis: A176467