26907

Appears in sequences

• a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n+1-k), where k = [ (n+1)/2 ], s = A001950 (upper Wythoff sequence).at n=34A024689
• Numbers k such that k and 2*k, taken together are pandigital.at n=17A115922
• 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, 1), (0, 1, 1), (1, -1, -1), (1, 1, -1)}.at n=9A148892
• a(n) = 961*n - 1.at n=27A158412
• a(n) = 28*n^2 - 1.at n=30A158554
• Sum of the second largest parts in the partitions of n into 6 parts.at n=43A308872
• G.f. A(x) satisfies A(x) = 1 + x/(1-x^3)^3 * A(x)^2.at n=10A390104