22084

Appears in sequences

• Number of prime pairs below 10^n having a difference of 20.at n=6A093745
• Number of arrays of n+2 integers in -2..2 with sum zero and the sum of every adjacent pair being odd.at n=10A202070
• Number of compositions of n in which the maximal multiplicity of parts equals 2.at n=18A243119
• Numbers n such that 2*n + prime(n) is a square.at n=41A256246
• a(n) = 348*2^n - 188.at n=6A278129
• Numbers k such that (25*10^k - 13)/3 is prime.at n=21A281142
• Irregular table whose rows list the nontrivial cycles of the ghost iteration A329201, starting with the smallest member.at n=7A329342