# A150279 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 23 4 89 5 366 6 1561 7 6769 8 30039 9 134844 10 612578 11 2810228 12 12981757 13 60400299 14 282517353 15 1327885926 16 6268368794 17 29695994753 18 141157315621 19 672914374614 20 3216240157019 21 15408786613744 22 73977869582241 23 355861253079682 24 1714836748695087 25 8276836894125192 26 40008433290430771 27 193655372835566275