74766

Appears in sequences

• a(n) = Sum_{k=0..floor(n/2)-2} T(n,k) * T(n,k+3), with T given by A026009.at n=7A027290
• G.f. A(x) satisfies: Sum_{n>=0} x^n * A(x)^(n^2) = Sum_{n>=0} x^n / [Product_{k=1..n} 1 - (2*k-1)*x].at n=8A325453
• Starts of runs of 3 consecutive Niven numbers in base 2 (A049445).at n=36A330932