# A334323 (b-file synthesized from sequence entry) 1 4 2 32 3 156 4 640 5 2380 6 8304 7 27580 8 89216 9 280980 10 869360 11 2649284 12 7967808 13 23722244 14 69977040 15 204845220 16 595628032 17 1721605028 18 4950241488 19 14167239268 20 40376066560 21 114635882508 22 324361357936 23 914912704060 24 2573307218304 25 7218778025700 26 20201661701936 27 56408010198948