A100483 a(1) = 2; a(n+1) = sum{k=1..n} floor(a(n+1-k)/k).

2, 2, 3, 4, 5, 8, 11, 17, 25, 39, 59, 93, 146, 229, 361, 569, 898, 1419, 2243, 3546, 5608, 8869, 14029, 22191, 35105, 55531, 87846, 138967, 219844, 347785, 550183, 870372, 1376909, 2178235, 3445913, 5451350, 8623906, 13642815, 21582611, 34143185