id:A025723 - OEIS Search Results

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Index of 7^n within sequence of numbers of form 5^i*7^j.

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1, 3, 6, 10, 15, 22, 30, 39, 49, 60, 73, 87, 102, 118, 135, 154, 174, 195, 217, 240, 265, 291, 318, 346, 376, 407, 439, 472, 506, 542, 579, 617, 656, 696, 738, 781, 825, 870, 916, 964, 1013, 1063, 1114, 1166, 1220, 1275, 1331, 1388, 1447, 1507, 1568, 1630, 1693 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A061304 A147846 A109442 this_sequence A022784 A025736 A022952` `Adjacent sequences: A025720 A025721 A025722 this_sequence A025724 A025725 A025726`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.

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