637534208domain: NAppears in sequencesa(n) = (3*n-2)*2^(n-3).at n=24A066373Denominators of the Taylor series of arccosh(z)/sqrt(2(x-1)) about 1.at n=9A091019a(n) = 19*2^n.at n=25A110288Numerators of the expected number of steps to hit the opposite corner by simple random walk on the n-cube.at n=15A384229