# A138387 (b-file synthesized from sequence entry) 6 1 7 2 8 8 9 23 10 74 11 220 12 674 13 2011 14 6038 15 17980 16 53547 17 158907 18 471225 19 1394786 20 4124929 21 12185636 22 35972082 23 106111713 24 312835608 25 921809509 26 2715058701 27 7993741597 28 23527694230 29 69228383367 30 203648980297 31 598945442071