# A122047 (b-file synthesized from sequence entry) 0 0 1 0 2 1 3 3 4 6 5 10 6 15 7 22 8 31 9 42 10 55 11 70 12 88 13 109 14 133 15 160 16 190 17 224 18 262 19 304 20 350 21 400 22 455 23 515 24 580 25 650 26 725 27 806 28 893 29 986 30 1085 31 1190 32 1302 33 1421 34 1547 35 1680 36 1820 37 1968 38 2124 39 2288 40 2460 41 2640 42 2829 43 3027