# A233453 (b-file synthesized from sequence entry) 1 0 2 1 3 10 4 100 5 1000 6 6813 7 10000 8 14678 9 46416 10 100000 11 146780 12 464159 13 1000000 14 4641589 15 10000000 16 21544347 17 68129207 18 100000000 19 1000000000 20 10000000000 21 100000000000 22 316227766017 23 681292069058 24 1000000000000 25 2154434690032 26 10000000000000 27 21544346900319