This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A291640 Numbers k such that 1 is the smallest decimal digit of k^3. 5
 1, 5, 6, 8, 11, 12, 13, 17, 21, 23, 24, 25, 26, 27, 28, 31, 39, 41, 44, 45, 49, 51, 53, 54, 55, 56, 57, 58, 61, 64, 68, 71, 75, 81, 82, 83, 85, 88, 91, 97, 98, 104, 105, 108, 111, 113, 114, 119, 121, 122, 125, 129, 136, 137, 139, 146, 147, 148, 151, 153, 156 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE 11 is in the sequence because 11^3 = 1331, the smallest decimal digit of which is 1. PROG (PARI) select(k->vecmin(digits(k^3))==1, vector(500, k, k)) CROSSREFS Cf. A291639, A291641, A291642, A291643, A291644. Sequence in context: A074819 A113935 A279646 * A088766 A091091 A262161 Adjacent sequences:  A291637 A291638 A291639 * A291641 A291642 A291643 KEYWORD nonn,base AUTHOR Colin Barker, Aug 28 2017 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 June 17 07:31 EDT 2019. Contains 324183 sequences. (Running on oeis4.)