# A101655 (b-file synthesized from sequence entry) 0 1 1 10 2 100 3 200 4 2000 5 4000 6 8000 7 80000 8 800000 9 1600000 10 3200000 11 32000000 12 64000000 13 640000000 14 6400000000 15 12800000000 16 128000000000 17 256000000000 18 512000000000 19 5120000000000 20 10240000000000 21 102400000000000