# A091152 (b-file synthesized from sequence entry) 0 1 1 3 2 9 3 29 4 103 5 405 6 1757 7 8355 8 43229 9 241677 10 1451103 11 9309961 12 63550785 13 459867819 14 3516536269 15 28337741649 16 240056534347 17 2133028001257 18 19839848253937 19 192812840531511 20 1954556549898449 21 20634173429269633