# A058781 (b-file synthesized from sequence entry) 1 3 2 7 3 25 4 41 5 45 6 63 7 83 8 131 9 147 10 175 11 425 12 449 13 469 14 651 15 1345 16 1839 17 1883 18 1913 19 2177 20 2551 21 2907 22 3675 23 6071 24 11743 25 14641 26 38685 27 40857 28 47761 29 97243