655365domain: NAppears in sequencesa(n) = 5*2^n + 5.at n=17A231643Number of length n+2 0..4 arrays with every three consecutive terms having the sum of some two elements equal to twice the third.at n=22A248429Expansion of Sum_{k>=2} x^prime(k) / (1 - Sum_{k>=2} x^prime(k))^2.at n=48A281853