20956320

Appears in sequences

• Triangle T(n, k) = c(n)/(c(k)*c(n-k)) where c(n) = 12*Product_{j=3..n} ( 12 * binomial(j+2, 4) ) with c(0) = c(1) = 1, read by rows.at n=48A174151
• Triangle T(n, k) = c(n)/(c(k)*c(n-k)) where c(n) = 12*Product_{j=3..n} ( 12 * binomial(j+2, 4) ) with c(0) = c(1) = 1, read by rows.at n=51A174151
• Total number of occurrences of the consecutive step pattern given by the binary expansion of n (where 1=up and 0=down) in all permutations of [n].at n=11A249249