# A026297 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 5 5 9 6 27 7 46 8 145 9 244 10 796 11 1330 12 4438 13 7382 14 25034 15 41508 16 142479 17 235672 18 816620 19 1348204 20 4706977 21 7759105 22 27256963 23 44873972 24 158450461 25 260581699 26 924129535 27 1518390034 28 5404960900 29 8873524820 30 31689099660 31 51988770150