# A246812 (b-file synthesized from sequence entry) 0 1 1 2 2 9 3 44 4 241 5 1374 6 8145 7 49512 8 306729 9 1927802 10 12256753 11 78661620 12 508786129 13 3312561638 14 21688815729 15 142699137072 16 942873631497 17 6253352120322 18 41611854129585 19 277723513754364 20 1858529465302329 21 12467403845702526 22 83817799189753785 23 564633483609422808 24 3810607016379076521