# A037743 (b-file synthesized from sequence entry) 1 2 2 21 3 213 4 2130 5 21302 6 213021 7 2130213 8 21302130 9 213021302 10 2130213021 11 21302130213 12 213021302130 13 2130213021302 14 21302130213021 15 213021302130213 16 2130213021302130 17 21302130213021302 18 213021302130213021 19 2130213021302130213 20 21302130213021302130