27063

Appears in sequences

• Numbers k such that the sum of the digits of k^sigma(k) is divisible by k.at n=21A109658
• Number of n X 7 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 1 vertically.at n=3A207067
• T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 1 vertically.at n=48A207068
• Number of 4Xn 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 1 vertically.at n=6A207071
• Number of integer partitions of the n-th Fermi-Dirac prime into Fermi-Dirac primes.at n=23A316210