id:A039938 - OEIS Search Results

Search: id:A039938

Displaying 1-1 of 1 results found.

page 1

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

+0
1

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: A077239 A046235 A025012 this_sequence A102760 A096965 A100309` `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.`

page 1

Search completed in 0.002 seconds

Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research