54224

Appears in sequences

• Eigensequence of triangle A078812: a(n) = Sum_{k=0..n-1} A078812(n-1,k)*a(k) for n > 0 with a(0)=1.at n=8A125274
• Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A127377/A127378.at n=12A127383
• Eigentriangle by rows, termwise products of A078812 and its eigensequence, A125274.at n=44A144254
• Number of partitions of n such that neither the number of parts nor the number of distinct parts is a part.at n=46A241380
• Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p that are > p/2.at n=27A282722
• a(n) = Sum_{k=0..floor(n/4)} binomial(n-3*k,k) * binomial(2*(n-3*k),n-3*k).at n=9A360267