161865

Appears in sequences

• n = k^2 - (reversal of k)^2 for two different values of k.at n=14A087672
• Let a(0)=1. Then a(n) = sums of consecutive strings of positive integers of length 3*n, starting with the integer 2.at n=33A289721
• a(n) = n*(2*n + 1)*(4*n + 1).at n=27A316224
• Number of pairs (c, y) where c is an integer composition and y is an integer partition and y can be obtained from c by choosing a partition of each part, flattening, and sorting.at n=13A318567
• a(n) = Sum_{k=0..floor(n/2)} binomial(k+3,3) * binomial(2*k,2*n-4*k).at n=16A382495