A025726 Index of 7^n within sequence of numbers of form 7^i*9^j.

1, 2, 4, 7, 11, 16, 22, 29, 37, 45, 54, 64, 75, 87, 100, 114, 129, 145, 161, 178, 196, 215, 235, 256, 278, 301, 325, 349, 374, 400, 427, 455, 484, 514, 545, 576, 608, 641, 675, 710, 746, 783, 821, 860, 899, 939, 980, 1022, 1065, 1109, 1154, 1200, 1247, 1294, 1342

Offset

1,2

Links

Table of n, a(n) for n=1..55.

Crossrefs

Sequence in context: A025717 A348575 A348400 * A070280 A025707 A337919

Adjacent sequences: A025723 A025724 A025725 * A025727 A025728 A025729

Keyword

nonn

Author

David W. Wilson

Status

approved