# A026096 (b-file synthesized from sequence entry) 0 2 1 4 2 8 3 15 4 42 5 127 6 376 7 1122 8 3344 9 9980 10 29796 11 89007 12 265986 13 795147 14 2377744 15 7112065 16 21277698 17 63670773 18 190560180 19 570416805 20 1707707142 21 5113158165 22 15311384784 23 45854766744 24 137339426436 25 411379964442 26 1232324471060