31286970

Appears in sequences

• a(n) = binomial(n+8,8)*binomial(n+12,8).at n=5A104478
• a(n) = binomial(n+5,n)*binomial(n+9,n).at n=8A105252
• Numbers k such that 2*k+1, 4*k+1, 8*k+1, 16*k+1, 32*k+1, 64*k+1 and 128*k+1 are primes.at n=19A124415
• Numbers k such that 2*k+1, 4*k+1, 8*k+1, 16*k+1, 32*k+1, 64*k+1, 128*k+1 and 256*k+1 are primes.at n=1A124416
• Number of set partitions of [n] with maximal block length multiplicity equal to ten.at n=8A271739