id:A039938 - OEIS Search Results

Search: id:A039938

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Smallest k for which k, 2k, ... nk all contain the digit 7.

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7, 37, 237, 1789, 4357, 14379, 19587, 93957, 189572, 189572, 189597, 189597, 189597, 1234397, 1839597, 1958798, 1983957, 1983957, 1983957, 1983957, 1983957, 1983957, 3978594, 11983957, 19596487, 29195397, 29195397, 29195397 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(2)=37 since 37 and 74 contain a 7.`
	CROSSREFS	`Sequence in context: A046235 A144496 A025012 this_sequence A102760 A096965 A159597` `Adjacent sequences: A039935 A039936 A039937 this_sequence A039939 A039940 A039941`
	KEYWORD	`base,nonn`
	AUTHOR	`Erich Friedman (erich.friedman(AT)stetson.edu)`
	EXTENSIONS	`More terms from Patrick De Geest (pdg(AT)worldofnumbers.com), Oct 15 1999.`

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.

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