# A248818 (b-file synthesized from sequence entry) 1 3 2 20 3 39 4 119 5 224 6 351 7 799 8 879 9 1076 10 1504 11 4064 12 6879 13 7999 14 56847 15 169640 16 346879 17 470975 18 893520 19 1955776 20 7546879 21 17604064 22 36722175 23 79999999 24 95546879 25 222503984 26 580483743 27 584057247 28 626394816 29 7999999999 30 17194139104