# A109559 (b-file synthesized from sequence entry) 0 23 1 31 2 283 3 337 4 409 5 421 6 547 7 577 8 631 9 661 10 797 11 997 12 1201 13 1237 14 1307 15 1459 16 1499 17 1511 18 1531 19 1583 20 1709 21 1789 22 1811 23 1889 24 2039 25 2357 26 2423 27 2633