# A006258 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 5 5 8 6 11 7 19 8 30 9 49 10 68 11 87 12 106 13 193 14 299 15 492 16 685 17 878 18 1071 19 1264 20 1457 21 2721 22 4178 23 6899 24 9620 25 12341 26 15062 27 17783 28 20504 29 23225 30 25946 31 49171 32 75117 33 124288 34 173459 35 222630 36 271801 37 320972 38 370143 39 419314 40 468485 41 517656 42 566827 43 1084483 44 1651310 45 2735793