A022854 a(n) = [ a(n-1)/a(1) + a(n-1)/a(2) + ... + a(n-1)/a(n-1) ] for n >= 3.

1, 1, 2, 5, 13, 36, 100, 281, 791, 2230, 6288, 17732, 50007, 141030, 397734, 1121696, 3163427, 8921555, 25160735, 70958773, 200119253, 564380046, 1591675124, 4488871850, 12659600055, 35702840027, 100689814882