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A025726 Index of 7^n within sequence of numbers of form 7^i*9^j. 0
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

CROSSREFS

Sequence in context: A319159 A025702 A025717 * A070280 A025707 A025733

Adjacent sequences:  A025723 A025724 A025725 * A025727 A025728 A025729

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified March 21 01:18 EDT 2019. Contains 321356 sequences. (Running on oeis4.)