# A154524 (b-file synthesized from sequence entry) 1 3 2 5 3 7 4 19 5 23 6 29 7 47 8 61 9 97 10 181 11 233 12 307 13 401 14 887 15 1021 16 1087 17 1361 18 1481 19 2053 20 2293 21 5407 22 5857 23 11059 24 14281 25 27277 26 27803 27 36497