99654

Appears in sequences

• The number of n-almost primes less than or equal to e^n, starting with a(0)=1.at n=32A116432
• 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), (1, 0, -1)}.at n=12A148289
• G.f. satisfies: 1-x = Sum_{n>=0} (-x)^n*A(x)^(n mod 3).at n=12A233347