A022860 a(n) = [ a(n-1)/a(1) ] + [ a(n-3)/a(3) ] + [ a(n-5)/a(5) ] + ..., for n >= 3.

1, 1, 1, 2, 3, 4, 6, 9, 13, 20, 30, 45, 68, 103, 155, 235, 356, 539, 816, 1236, 1873, 2838, 4300, 6517, 9877, 14970, 22688, 34385, 52115, 78988, 119716, 181445, 275005, 416808, 631729, 957475, 1451188, 2199479, 3333622, 5052575