This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A043051 a(n)=(s(n)+3)/5, where s(n)=n-th base 5 palindrome that starts with 2. 0
 1, 3, 11, 12, 13, 14, 15, 51, 57, 63, 69, 75, 251, 256, 261, 266, 271, 277, 282, 287, 292, 297, 303, 308, 313, 318, 323, 329, 334, 339, 344, 349, 355, 360, 365, 370, 375, 1251, 1281, 1311, 1341, 1371, 1377, 1407, 1437, 1467, 1497 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS MATHEMATICA pal5Q[n_]:=Module[{idn5=IntegerDigits[n, 5]}, idn5==Reverse[idn5]&&First[idn5]==2] (#+3)/5&/@Select[Range[9000], pal5Q]  (* Harvey P. Dale, Feb 13 2011 *) CROSSREFS Sequence in context: A232038 A072980 A128500 * A024545 A101134 A045110 Adjacent sequences:  A043048 A043049 A043050 * A043052 A043053 A043054 KEYWORD nonn,base 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified November 17 12:39 EST 2018. Contains 317276 sequences. (Running on oeis4.)