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 A130175 2n+1 appears (last digit of 2n+1) times . 1
 1, 3, 3, 3, 5, 5, 5, 5, 5, 7, 7, 7, 7, 7, 7, 7, 9, 9, 9, 9, 9, 9, 9, 9, 9, 11, 13, 13, 13, 15, 15, 15, 15, 15, 17, 17, 17, 17, 17, 17, 17, 19, 19, 19, 19, 19, 19, 19, 19, 19, 21, 23, 23, 23, 25, 25, 25, 25, 25, 27, 27, 27, 27, 27, 27, 27, 29, 29, 29, 29, 29, 29, 29, 29, 29, 31, 33, 33 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Robert Israel, Table of n, a(n) for n = 1..10000 FORMULA a(n) = a(n-1) + a(n-25) - a(n-26) for n > 26. - Robert Israel, Jun 09 2023 MAPLE seq((2*m+1)\$(2*m+1 mod 10), m=0..100); # Robert Israel, Jun 09 2023 MATHEMATICA Table[Table[n, {Mod[n, 10]}], {n, 1, 35, 2}]//Flatten (* Harvey P. Dale, Apr 24 2018 *) CROSSREFS Cf. A130146. Sequence in context: A126661 A162226 A001650 * A200266 A101290 A080605 Adjacent sequences: A130172 A130173 A130174 * A130176 A130177 A130178 KEYWORD nonn,base AUTHOR Paul Curtz, Aug 05 2007 STATUS approved

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Last modified November 28 17:53 EST 2023. Contains 367419 sequences. (Running on oeis4.)