27655

Appears in sequences

• Numbers k such that N*2^k + 1 is prime where N = 9999999999999999999999988888888888888888887777777777777777766666666666665555555555544444443333322211.at n=24A098467
• 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, 0), (0, -1, 1), (0, 1, 0), (1, 0, -1)}.at n=11A148109
• G.f. A(x) satisfies A(x) = 1 + x*(1-x^2)^2*A(x)^3.at n=8A389942