A022855 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, 35, 97, 271, 761, 2143, 6042, 17043, 48081, 135656, 382752, 1079939, 3047074, 8597406, 24257838, 68444231, 193117503, 544886995, 1537415492, 4337865331, 12239421132, 34533905116, 97438480950