37722

Appears in sequences

• Number of subsets {x(1),x(2),...,x(k)} of {1,2,...,n} such that all differences |x(i)-x(j)| are distinct.at n=26A143823
• Integers having ideal digital mean up to base 5.at n=12A144800
• Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,2,1,0,0 for x=0,1,2,3,4.at n=11A197174
• Number of n X 6 0..1 arrays with every element equal to 0, 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero.at n=15A298492
• Expansion of (-1 + Product_{k>=1} 1 / (1 + (-x)^k))^6.at n=20A341245
• a(n) is the least k such that A127064(k) = n.at n=27A378417