# A004890 (b-file synthesized from sequence entry) 1 0 2 1 3 2 4 3 5 4 6 5 7 6 8 512 9 513 10 514 11 515 12 516 13 517 14 1024 15 1025 16 1026 17 1027 18 1028 19 1536 20 1537 21 1538 22 1539 23 2048 24 2049 25 2050 26 2560 27 2561 28 3072 29 19683 30 19684 31 19685 32 19686 33 19687 34 19688 35 20195 36 20196 37 20197 38 20198 39 20199 40 20707 41 20708 42 20709 43 20710 44 21219