# A109678 (b-file synthesized from sequence entry) 1 1 2 5 3 14 4 30 5 55 6 91 7 140 8 204 9 285 10 385 11 506 12 650 13 819 14 1015 15 1240 16 1496 17 1785 18 2109 19 2470 20 2870 21 3311 22 3795 23 4324 24 4900 25 5525 26 6201 27 6930 28 7714 29 8555 30 9455 31 10416 32 11440 33 12529 34 13685 35 14910 36 16206 37 17575 38 19019 39 20540 40 22140 41 23821 42 25585