# A024757 (b-file synthesized from sequence entry) 1 252 2 462 3 792 4 924 5 1287 6 1716 7 2002 8 3003 9 3432 10 4368 11 5005 12 6188 13 6435 14 8008 15 8568 16 11440 17 11628 18 12376 19 12870 20 15504 21 18564 22 19448 23 20349 24 24310 25 26334 26 27132 27 31824 28 33649 29 38760 30 42504 31 43758 32 48620 33 50388 34 53130 35 54264 36 65780 37 74613 38 75582 39 77520