# A150219 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 21 4 82 5 321 6 1315 7 5459 8 23101 9 99239 10 430761 11 1885010 12 8314081 13 36891946 14 164646168 15 738475180 16 3325764202 17 15034489911 18 68193338795 19 310244886356 20 1415392174360 21 6473319142842 22 29672579428926 23 136297729801830 24 627265676209046 25 2891910000783213 26 13354629064337700 27 61764320784189527