A120183 a(1)=6; a(n)=floor((41+sum(a(1) to a(n-1)))/6).

6, 7, 9, 10, 12, 14, 16, 19, 22, 26, 30, 35, 41, 48, 56, 65, 76, 88, 103, 120, 140, 164, 191, 223, 260, 303, 354, 413, 482, 562, 656, 765, 892, 1041, 1215, 1417, 1653, 1929, 2250, 2625