41229domain: NAppears in sequencesa(1) = 3; a(n+1) = a(n)-th composite.at n=44A022451Expansion of 1/(1 + x - x^2 - 3*x^3 - x^4 + x^5 + x^6).at n=42A147592Number of nonnegative integer arrays of length n+5 with new values 0 upwards introduced in order, no three adjacent elements equal, and containing the value n+1.at n=7A211838