# A145365 (b-file synthesized from sequence entry) 1 1 2 3 3 5 4 9 5 13 6 25 7 33 8 57 9 81 10 129 11 177 12 289 13 385 14 609 15 833 16 1281 17 1729 18 2689 19 3585 20 5505 21 7425 22 11265 23 15105 24 23041 25 30721