27922

Appears in sequences

• Number of "cubic partitions" of n: expansion of Product_{k>0} 1/((1-x^(2k))^2*(1-x^(2k-1))) in powers of x.at n=28A002513
• a(n) = (4^n mod 3^n) mod 2^n.at n=14A064536
• a(n) = 12167*n - 8579.at n=2A156845
• Least number k such that (n!+k)/n and (n!-k)/n are both prime.at n=43A245697
• Numbers n such that n^2 + 3, n^3 + 3, n^4 + 3, n^5 + 3, n^6 + 3 and n^7 + 3 are semiprime.at n=6A253907
• Expansion of Product_{k>=0} (1 + (2*k + 1)*x^(2*k+1)).at n=34A282207
• Number of non-isomorphic graphs on 4n vertices whose edges are the union of two n-edge matchings.at n=14A305168
• Sum of distinct products i*j with 1 <= i, j <= n.at n=21A321165