61655

Appears in sequences

• Truncated square pyramid numbers: a(n) = Sum_{k = n..2*n-1} k^2.at n=30A050410
• a(n) = (2*n+1)*(2*n+3)*(2*n+5)/3.at n=27A162540
• Integers k such that k*2^k + 3 is prime.at n=19A382094
• G.f.: Sum_{k>=0} x^k * Product_{j=1..4*k} (1 + x^j)/(1 - x^j).at n=25A385090