A022867 a(n) = [ a(n-1)/a(1) + a(n-1)/a(2) + ... + a(n-1)/a(n-1) ] for n >= 3.

2, 2, 2, 3, 5, 10, 21, 45, 99, 219, 485, 1076, 2389, 5306, 11786, 26182, 58164, 129215, 287062, 637734, 1416785, 3147520, 6992512, 15534524, 34511410, 76670354, 170330428, 378405125, 840662707, 1867611566, 4149075406