-1667

Appears in sequences

• a(n) = A174817(n) - Mnr; where Mnr = A001228(26) = 808017424794512875886459904961710757005754368000000000, also called the Monster number, cf. A003131.at n=29A174818
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 313", based on the 5-celled von Neumann neighborhood.at n=23A271203
• a(n) = Sum_{d|n} mu(d) * binomial(d+n/d-1, d).at n=48A338657