89394

Appears in sequences

• Number of subsets of the first n primes whose sum is a prime.at n=18A071810
• G.f.: exp( Sum_{n>=1} A001511(n)*2^A001511(n)*x^n/n ) where A001511(n) equals the 2-adic valuation of 2n.at n=26A183036
• a(n) = Sum_{i=0..n} digsum_9(i)^4, where digsum_9(i) = A053830(i).at n=35A231687
• a(n) = Sum_{i=0..n} digsum(i)^4, where digsum(i) = A007953(i).at n=35A231689