41608

Appears in sequences

• Number of lesser twin primes (A001359) in range ]2^n, 2^(n+1)].at n=22A095017
• Row sums of triangle defined in A113820.at n=37A160968
• Number of (w,x,y,z) with all terms in {1,...,n} and median=mean.at n=28A212133
• Numbers n such that prime(n) + reversal(prime(n)) is a square.at n=37A227371
• Number of (n+1)X(2+1) 0..3 arrays with the minimum plus the maximum equal to the lower median plus the upper median in every 2X2 subblock.at n=2A236004
• Number of (n+1)X(3+1) 0..3 arrays with the minimum plus the maximum equal to the lower median plus the upper median in every 2X2 subblock.at n=1A236005
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the minimum plus the maximum equal to the lower median plus the upper median in every 2X2 subblock.at n=7A236009
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the minimum plus the maximum equal to the lower median plus the upper median in every 2X2 subblock.at n=8A236009
• Numbers k such that R_(k+2) + 5*10^k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=8A256931
• a(n) = [x^n] x * Product_{j>=0} (1 + x^(2^j) + n*x^(2^(j+1))).at n=27A342643