# A023596 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 5 5 8 6 14 7 23 8 38 9 61 10 100 11 162 12 263 13 426 14 689 15 1116 16 1806 17 2923 18 4730 19 7654 20 12384 21 20039 22 32424 23 52464 24 84889 25 137354 26 222244 27 359598 28 581843 29 941442 30 1523286 31 2464729 32 3988016 33 6452746