# A095967 (b-file synthesized from sequence entry) 1 1 2 2 3 6 4 9 5 20 6 46 7 58 8 64 9 69 10 110 11 158 12 178 13 186 14 268 15 424 16 624 17 641 18 1236 19 1593 20 2264 21 2870 22 5797 23 7518 24 7688 25 9300