# A050577 (b-file synthesized from sequence entry) 1 3 2 7 3 11 4 19 5 63 6 75 7 95 8 127 9 155 10 163 11 171 12 283 13 563 14 1739 15 2243 16 3971 17 4375 18 5227 19 8307 20 9943 21 18383 22 19835 23 25879 24 26927 25 36895 26 304771 27 422939