56561domain: NAppears in sequencesPisot sequence T(7,10), a(n) = floor(a(n-1)^2/a(n-2)).at n=45A020752Number of permutations of 1..n with displacements restricted to {-5,-4,0,1,2,3}.at n=13A189592Semiprimes formed by concatenating n, n, and 1 for n = 1, 2, 3,....at n=24A210711