# A051798 (b-file synthesized from sequence entry) 0 1 1 13 2 55 3 155 4 350 5 686 6 1218 7 2010 8 3135 9 4675 10 6721 11 9373 12 12740 13 16940 14 22100 15 28356 16 35853 17 44745 18 55195 19 67375 20 81466 21 97658 22 116150 23 137150 24 160875 25 187551 26 217413 27 250705 28 287680 29 328600 30 373736 31 423368 32 477785 33 537285