# A076501 (b-file synthesized from sequence entry) 1 2 2 5 3 13 4 31 5 73 6 173 7 409 8 967 9 3450844193 10 39661481813 11 2076849234433 12 52134281654579 13 14838980942616539 14 260230524377962793 15 4563650703502319197 16 80032531899785490253 17 172111744128569095516889