The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A260255 Numbers that can be written as the sum of two nonnegative palindromes in base 10. 13
 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS More than the usual number of terms are shown in order to distinguish this from A261906. - N. J. A. Sloane, Sep 09 2015 A260254(a(n)) > 0. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 Chai Wah Wu, Fraction of first n numbers that are terms of this sequence, for n < 10^8, Sep 15 2015 MATHEMATICA palQ[n_Integer, base_Integer] := Block[{}, Reverse[idn = IntegerDigits[n, base]] == idn]; Take[ Union[ Plus @@@ Tuples[ Select[ Range[0, 100], palQ[#, 10] &], 2]], 90] (* Robert G. Wilson v, Jul 22 2015 *) PROG (Haskell) a260255 n = a260255_list !! (n-1) a260255_list = filter ((> 0) . a260254) [0..] CROSSREFS Cf. A035137 (complement), A260254, A002113. 111 is a member of this sequence but not of A261906. A213879 lists the differences. Sequence in context: A338555 A338331 A318535 * A261906 A179239 A287478 Adjacent sequences: A260252 A260253 A260254 * A260256 A260257 A260258 KEYWORD nonn,base AUTHOR Reinhard Zumkeller, Jul 21 2015 STATUS approved

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

Last modified February 29 17:30 EST 2024. Contains 370428 sequences. (Running on oeis4.)