1471470

Appears in sequences

• Triangle T(n, k) = binomial(n, k)*binomial(n+1, k+1)*binomial(2*n, 2*k)/(n-k+1), read by rows.at n=31A155497
• Triangle T(n, k) = binomial(n, k)*binomial(n+1, k+1)*binomial(2*n, 2*k)/(n-k+1), read by rows.at n=32A155497
• Triangle, read by rows, T(n, k) = A059481(n,k)*(A059481(n,k) - 1)/2.at n=27A171379
• Triangle, read by rows, T(n, k) = A059481(n,k)*(A059481(n,k) - 1)/2.at n=33A171379
• a(n) = smaller member of n-th pair of distinct, positive, triangular numbers whose sum and difference are also triangular numbers.at n=23A185129