86950

Appears in sequences

• a(n) is the number of nonnegative integers k less than 10^n such that the decimal representation of k lacks at least one of digits 1,2,3, at least one of digits 4,5,6 and at least one of digits 7,8,9.at n=4A125948
• 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, 1), (-1, 0, 0), (0, 1, -1), (0, 1, 0), (1, -1, 0)}.at n=12A148133
• E.g.f. satisfies: A(x) = exp( Integral 1 + x*A(x)^3 dx ), where the constant of integration is zero.at n=7A212914