# A232015 (b-file synthesized from sequence entry) 0 1 1 -1 2 5 3 -1 4 29 5 23 6 197 7 335 8 1517 9 3527 10 12629 11 33791 12 109565 13 312311 14 969701 15 2843567 16 8661773 17 25723175 18 77693813 19 232032863 20 698195741 21 2090392919 22 6279567365 23 18821924879 24 56499329069 25 169430878343 26 508426852757 27 1525012122815 28 4575573239357