# A143009 (b-file synthesized from sequence entry) 0 1 1 25 2 253 3 1445 4 5741 5 17861 6 46705 7 107353 8 223465 9 430081 10 776821 11 1331485 12 2184053 13 3451085 14 5280521 15 7856881 16 11406865 17 16205353 18 22581805 19 30927061 20 41700541 21 55437845 22 72758753 23 94375625 24 121102201