20642

Appears in sequences

• Powers of cube root of 2 rounded down.at n=43A017979
• Largest integer terms forming a self-convolution square-root of a sequence (A132833) such that: A132833(n) <= 3*A132833(n-1) for n>0 with A132833(0)=1.at n=11A132834
• Numbers which converge to 2592 under repeated application of the powertrain map of A133500.at n=17A135384
• 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, 1, -1), (0, 0, 1), (1, 0, -1), (1, 0, 1)}.at n=8A150304
• a(n) = 2^n mod n^3.at n=42A233442
• O.g.f. exp( Sum_{n >= 1} A262732(n)*x^n/n ).at n=4A262737
• Composite numbers n such that Sum_{k = 0..n} (-1)^k * C(n,k) * C(2*n,k) == -1 (mod n^3) (see A234839).at n=31A268303
• Solution of the complementary equation a(n) = a(n-1) + 2*a(n-2) + b(n-2), where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4, and (a(n)) and (b(n)) are increasing complementary sequences.at n=13A295146