1032989

Appears in sequences

• Number of solutions to c(1)*prime(4) + ... + c(n)*prime(n+3) = 2, where c(i) = +-1 for i > 1, c(1) = 1.at n=29A022920
• Numbers k such that the k-th triangular number contains only digits {3,5,6}.at n=20A119187