This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A049306 Numbers n such that n is a substring of 8^n. 2
 4, 6, 7, 10, 13, 17, 18, 28, 31, 33, 36, 38, 42, 44, 47, 48, 49, 52, 54, 56, 58, 60, 63, 64, 67, 68, 69, 76, 77, 79, 81, 82, 83, 85, 86, 89, 90, 91, 94, 97, 112, 115, 124, 130, 135, 165, 173, 176, 178, 189, 193, 195, 206, 208, 215, 221, 225, 249, 251, 252, 253, 256 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MAPLE op(select(n->searchtext(convert(n, string), convert(8^n, string))>0, [\$1..256])); # Paolo P. Lava, Sep 05 2018 MATHEMATICA Select[Range[300], SequenceCount[IntegerDigits[8^#], IntegerDigits[#]]>0&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Dec 16 2018 *) CROSSREFS Cf. A032740, A049301-A049307. Sequence in context: A286485 A277572 A107622 * A023635 A317649 A265036 Adjacent sequences:  A049303 A049304 A049305 * A049307 A049308 A049309 KEYWORD nonn,base,easy AUTHOR STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified March 26 10:18 EDT 2019. Contains 321491 sequences. (Running on oeis4.)