# A056368 (b-file synthesized from sequence entry) 1 0 2 0 3 0 4 1 5 2 6 11 7 33 8 136 9 478 10 1849 11 6845 12 26136 13 98406 14 373977 15 1416249 16 5380770 17 20440250 18 77794939 19 296384565 20 1131009781 21 4321964735 22 16541268223 23 63400061153 24 243358777620 25 935431121460 26 3600520732809