441675

Appears in sequences

• Number of ways to write 1 as ordered sum of n powers of 1/2, allowing repeats.at n=8A007178
• a(n) = n*(n + 1)*(n + 2)*(n^2 - n + 4)/24.at n=24A256859
• Numbers n such that n+2, n+4, n+6, n+8, n+10, n+12 and n+14 are all semiprimes.at n=25A268578
• Number A(n,k) of compositions (ordered partitions) of 1 into exactly k*n+1 powers of 1/(k+1); square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=53A294746
• Number of compositions (ordered partitions) of 1 into exactly 8n+1 powers of 1/(n+1).at n=1A294987