# A025253 (b-file synthesized from sequence entry) 1 0 2 2 3 1 4 0 5 2 6 1 7 4 8 6 9 10 10 24 11 36 12 85 13 152 14 310 15 638 16 1232 17 2620 18 5194 19 10840 20 22332 21 46004 22 96528 23 199816 24 420365 25 880112 26 1851366 27 3908854 28 8245536 29 17482220 30 37049662 31 78746776 32 167602164 33 357127116 34 762506640 35 1629288824 36 3487128706 37 7470956240