id:A025693 - OEIS Search Results

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Index of 2^n within sequence of numbers of form 2^i*7^j.

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1, 2, 3, 5, 7, 9, 12, 15, 18, 22, 26, 30, 35, 40, 45, 51, 57, 64, 71, 78, 86, 94, 102, 111, 120, 129, 139, 149, 159, 170, 181, 193, 205, 217, 230, 243, 256, 270, 284, 298, 313, 328, 343, 359, 375, 392, 409, 426, 444, 462, 480, 499, 518, 537, 557, 577, 597, 618, 639, 661, 683 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A003591.` `Sequence in context: A001840 A130206 A022794 this_sequence A117930 A090632 A022786` `Adjacent sequences: A025690 A025691 A025692 this_sequence A025694 A025695 A025696`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`
	EXTENSIONS	`An incorrect g.f. was deleted by N. J. A. Sloane, Sep 16 2009`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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