The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A167994 Numbers n with property that first digit of 2*n = last digit of n. 10
 12, 24, 25, 37, 49, 51, 61, 71, 81, 91, 102, 112, 122, 132, 142, 153, 163, 173, 183, 193, 204, 214, 224, 234, 244, 255, 265, 275, 285, 295, 306, 316, 326, 336, 346, 357, 367, 377, 387, 397, 408, 418, 428, 438, 448, 459, 469, 479, 489, 499, 501, 511, 521, 531 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS G. C. Greubel, Table of n, a(n) for n = 1..1000 EXAMPLE 2*12=24, 2*24=48, 2*25=50, 2*37=74, etc. MATHEMATICA Select[Range[600], Mod[#, 10]==First[IntegerDigits[2#]]&] (* Harvey P. Dale, May 27 2014 *) CROSSREFS Sequence in context: A297276 A095780 A119588 * A065303 A239673 A208158 Adjacent sequences:  A167991 A167992 A167993 * A167995 A167996 A167997 KEYWORD base,nonn AUTHOR Zak Seidov, Nov 16 2009 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 September 28 06:40 EDT 2021. Contains 347703 sequences. (Running on oeis4.)