37774domain: NAppears in sequencesG.f. satisfies: A(A(x)) = A(x) + A(x^2).at n=7A141140Coefficients of a generalized Jaco-Lucas polynomial (odd indices) read by rows.at n=39A200073Products k of 4 distinct primes (or tetraprimes) such that none of k-2, k-1, k+1 and k+2 is squarefree.at n=24A364766