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A025710 Index of 5^n within sequence of numbers of form 5^i*9^j. 0
1, 2, 4, 7, 10, 14, 19, 25, 31, 38, 46, 55, 64, 74, 85, 96, 108, 121, 135, 149, 164, 180, 197, 214, 232, 251, 271, 291, 312, 334, 356, 379, 403, 428, 453, 479, 506, 534, 562, 591, 621, 652, 683, 715, 748, 781, 815, 850, 886, 922, 959, 997, 1036, 1075, 1115, 1156, 1198 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..57.

CROSSREFS

Sequence in context: A117634 A022776 A025704 * A023536 A196126 A024536

Adjacent sequences:  A025707 A025708 A025709 * A025711 A025712 A025713

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified September 20 08:13 EDT 2019. Contains 327214 sequences. (Running on oeis4.)