# A107615 (b-file synthesized from sequence entry) 1 1 2 2 3 7 4 18 5 31 6 48 7 71 8 96 9 125 10 158 11 193 12 232 13 273 14 316 15 363 16 416 17 475 18 536 19 599 20 664 21 731 22 802 23 875 24 952 25 1033 26 1116 27 1201 28 1290 29 1383 30 1478 31 1579