38568

Appears in sequences

• Number of primitive (period n) step cyclic shifted sequences using a maximum of four different symbols.at n=10A056421
• 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, -1), (-1, 0, 0), (1, 0, 0), (1, 1, 1)}.at n=8A150689
• a(0)=1; for n>0, p2(n)+Sum(binomial(2*k,k)*p2(n-k)/2,k=1..n-1) where p2 = A002995, the number of unlabeled planar trees on n nodes.at n=10A191280
• Number of (w,x,y,z) with all terms in {1,...,n} and min{|w-x|,|w-y|}=min{|x-y|,|x-z|}.at n=28A212579
• Numbers n such that n^2 + 1 is divisible by a 5th power.at n=24A218564
• Number of nX4 0..1 arrays with every element equal to 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.at n=14A298051