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 A171904 Smallest number m such that m and m+n have both at least two identical neighboring digits in their decimal representations. 3
 99, 110, 110, 110, 110, 110, 110, 110, 110, 100, 11, 88, 99, 99, 99, 99, 99, 99, 99, 99, 112, 11, 77, 88, 88, 88, 88, 88, 88, 88, 88, 112, 11, 66, 77, 77, 77, 77, 77, 77, 77, 77, 112, 11, 55, 66, 66, 66, 66, 66, 66, 66, 66, 112, 11, 44, 55, 55, 55, 55, 55, 55, 55, 55 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(n) + n = A171901(k) for some k. LINKS R. Zumkeller, Table of n, a(n) for n = 1..10000 FORMULA A196368(a(n)) + A196368(a(n)+n) = 0. - Reinhard Zumkeller, Jan 31 2014 PROG (Haskell) a171904 n = head [m | m <- a171901_list, a196368 (m + n) == 0] -- Reinhard Zumkeller, Jan 31 2014 CROSSREFS Cf. A196368, A171901, A171903. Sequence in context: A317592 A296881 A243259 * A171903 A072433 A133650 Adjacent sequences:  A171901 A171902 A171903 * A171905 A171906 A171907 KEYWORD base,nonn,look AUTHOR Reinhard Zumkeller, Feb 07 2010 STATUS approved

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Last modified February 21 23:41 EST 2020. Contains 332113 sequences. (Running on oeis4.)