# A351343 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 1 5 3 6 9 7 27 8 81 9 245 10 761 11 2493 12 8849 13 34519 14 147057 15 670327 16 3198561 17 15732905 18 79174929 19 407127897 20 2145061729 21 11635963499 22 65309080185 23 380583443187 24 2304629301041 25 14475031232285 26 93943897651017 27 627220447621973 28 4290783719133041 29 29988917377046207