26638

Appears in sequences

• Number of 3rd-order maximal independent sets in cycle graph.at n=47A007387
• Position of first repeat of the opening sequence of length n occurring after the first repeat of the opening sequence of length n-1 in the Kolakoski sequence (A000002).at n=39A074300
• a(n)=a(n-2)+a(n-5).at n=47A133394
• 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), (0, 1, -1), (0, 1, 1), (1, 0, 0), (1, 1, 1)}.at n=7A151203
• Numbers m such that m^2 + 3^k is prime for k = 1, 2, 3.at n=37A177173
• a(n) = n * (binomial(n,2) - 2).at n=38A341768
• Number of semi-sums of integer partitions of n.at n=28A366738
• G.f.: Sum_{k>=0} x^(k^2) / Product_{j=1..k} (1 - x^(2*j-1))^2.at n=49A376581