76437domain: NAppears in sequencesNumber of board-pair-pile hexagonal polyominoes with n cells.at n=8A068091Indices of primes in sequence defined by A(0) = 53, A(n) = 10*A(n-1) + 13 for n > 0.at n=12A101579Expansion of g.f. A(x) satisfying 1/3 = Sum_{n=-oo..+oo} x^n * (2*A(x) + (-x)^n)^(3*n-1).at n=3A363103