99303domain: NAppears in sequencesa(n) = least m such that sum of m reciprocal primes starting with n-th prime is >1.at n=38A137368Numbers k such that (746*10^k + 1)/9 is prime.at n=23A282458Expansion of (1/x) * Series_Reversion( x * (1-x) / (1+3*x)^2 ).at n=5A371393