# A037750 (b-file synthesized from sequence entry) 1 2 2 23 3 230 4 2301 5 23012 6 230123 7 2301230 8 23012301 9 230123012 10 2301230123 11 23012301230 12 230123012301 13 2301230123012 14 23012301230123 15 230123012301230 16 2301230123012301