# A251765 (b-file synthesized from sequence entry) 0 0 1 0 2 1 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 1 11 2 12 4 13 7 14 14 15 28 16 56 17 112 18 224 19 448 20 896 21 1791 22 3580 23 7156 24 14305 25 28596 26 57164 27 114272 28 228432 29 456640 30 912832 31 1824768 32 3647745 33 7291910 34 14576664 35 29139023 36 58249450 37 116441736 38 232769200 39 465309968 40 930163296 41 1859413760