# A288448 (b-file synthesized from sequence entry) 1 5 2 9 3 17 4 21 5 29 6 53 7 57 8 105 9 111 10 279 11 303 12 435 13 483 14 677 15 1049 16 1217 17 1395 18 9651 19 26031 20 31937