45774

Appears in sequences

• Let P(n,x) be defined by P(1,x)=P(2,x)=x, P(n,x)=P(n-1,x)*P(n-2,x)+1; then a(n) is the maximum element among coefficients of P(n,x) of degree F(n) (where F(n) denotes the n-th Fibonacci number).at n=8A076534
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (-1, 1, 1), (0, -1, 1), (1, 0, 0)}.at n=11A148243
• G.f. satisfies A(x)/A(x^2) = (1 + 9x + 9x^2 + 9x^3 + ...).at n=19A176201
• Number of separable partitions of n in which the number of distinct (repeatable) parts is 6.at n=48A325650