# A259854 (b-file synthesized from sequence entry) 1 4 2 32 3 164 4 704 5 2748 6 10096 7 35524 8 121056 9 402420 10 1311504 11 4205476 12 13304864 13 41612324 14 128878736 15 395767092 16 1206315296 17 3652739252 18 10995977424 19 32927997988 20 98139646880 21 291246749300 22 860965104720