# A150470 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 25 4 98 5 403 6 1711 7 7464 8 33175 9 149754 10 684058 11 3155132 12 14669665 13 68664134 14 323240314 15 1529158466 16 7264937874 17 34644069379 18 165748338880 19 795297442886 20 3825885604124 21 18447555311807 22 89135166391835 23 431494654085530 24 2092386272672094 25 10162065509008536 26 49423947710676789 27 240689237776366096