# A037636 (b-file synthesized from sequence entry) 1 2 2 17 3 139 4 1114 5 8913 6 71307 7 570458 8 4563665 9 36509323 10 292074586 11 2336596689 12 18692773515 13 149542188122 14 1196337504977 15 9570700039819 16 76565600318554 17 612524802548433 18 4900198420387467