# A106313 (b-file synthesized from sequence entry) 1 1 2 4 3 9 4 16 5 37 6 129 7 338 8 753 9 1700 10 3103 11 11587 12 38262 13 108970 14 314889 15 1052618 16 3214631 17 7956588 18 21949554 19 99877774 20 222744643 21 597394253 22 1932355207 23 7250186215 24 17146907277 25 55160980938 26 155891678120 27 508666658005 28 1427745660373 29 4551193622463