# A148067 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 12 5 25 6 87 7 189 8 788 9 1893 10 7569 11 18601 12 80506 13 207493 14 874156 15 2280579 16 10100264 17 27140517 18 117684741 19 318421209 20 1430927370 21 3951930221 22 17460909038 23 48431305459 24 219878196682 25 619212387825 26 2771909420147 27 7828026283149 28 35809758410988 29 102329069152021 30 462524102337463 31 1324171950218941