# A049126 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 6 5 22 6 90 7 393 8 1789 9 8378 10 40050 11 194492 12 956448 13 4752519 14 23822571 15 120315345 16 611644737 17 3127389106 18 16072642890 19 82981119252 20 430187414196 21 2238469102212 22 11687227631892 23 61208286479382 24 321465732705594