# A146733 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 7 7 21 8 51 9 221 10 1241 11 9517 12 82699 13 831417 14 10562039 15 171512909 16 3474881423 17 89012624955 18 2811600551097 19 108083175359051 20 5158385898284233 21 309138121525742883