79790domain: NAppears in sequencesa(1) = 1; for n > 1, a(n) is the least k > a(n-1) such that a(n) + a(n-1) is square and a(n) - a(n-1) is prime.at n=38A108972Number of compositions of n with exactly 3 transitions between different parts.at n=22A244715Expansion of Product_{k>=1} 1 / ((1 - x^k) * (1 - x^(k^3))).at n=34A369579