63931

Appears in sequences

• The sequence e when b=[ 1,0,1,1,1,... ].at n=50A042953
• Number of (w,x,y,z) with all terms in {1,...,n} and w*x<3*y*z.at n=17A211917
• Number of tilings of a 12 X n rectangle using 2n hexominoes of shape I.at n=22A250663