60164

Appears in sequences

• Numbers k such that the concatenation of k with 4*k gives a square.at n=9A115535
• Number of reduced words of length n in the infinite affine Weyl group (E_6)^{~} on 7 generators.at n=17A161410
• Number of (w,x,y,z) with all terms in {1,...,n} and w + x > 2y + 2z.at n=26A212564
• Number of nX6 0..1 arrays with every element unequal to 0, 1 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=22A317771