41866

Appears in sequences

• Numbers n such that (n + prime(n)), (n+1 + prime(n+1)), (n+2 + prime(n+2)) and (n+3 + prime(n+3)) are divisible by 5.at n=31A107582
• Number of subsets of {1,2,...,n} whose sum is semiprime (cf. A001358, A064911).at n=16A181522
• Number of compositions (ordered partitions) of n into at least 2 distinct positive parts.at n=30A216695
• Number of nX4 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-1) or (-2,0) and new values introduced in order 0..2.at n=9A274891
• a(n) = n*((2*n + 1)*(2*n^2 + 2*n + 3) - 3*(-1)^n)/24.at n=22A325517
• a(n) is the constant term in expansion of Product_{k=1..n} (x^(k^2) + 1/x^(k^2))^2.at n=12A350495
• Numbers N such that N + the sum of the cubes of its digits is again a third power.at n=29A362953