23177

Appears in sequences

• Number of symmetric types of (3,2n)-hypergraphs under action of complementing group C(3,2).at n=41A055780
• 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, 1, 1), (0, 0, -1), (0, 1, 1), (1, 0, 0)}.at n=8A150209
• Numbers n which are concatenations n=x//y such that x^2+y^3 is a multiple of n.at n=38A162464
• a(n) = 7*A000330(n).at n=21A169607
• Numbers with three distinct prime factors (each of which may or may not be repeated) which when concatenated in any order form a prime number.at n=1A181559
• Number of nX2 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=31A200984
• Number of orbits of Aut(Z^7) as function of the infinity norm n of the representative lattice point of the orbit, when the cardinality of the orbit is equal to 13440.at n=43A266398
• Expansion of the o.g.f. (2*x^2 + 3*x + 2)*x/((x + 1)^2*(x - 1)^4).at n=42A342397