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 A287092 Strobogrammatic nonpalindromic numbers. 0
 69, 96, 609, 619, 689, 906, 916, 986, 1691, 1961, 6009, 6119, 6699, 6889, 6969, 8698, 8968, 9006, 9116, 9696, 9886, 9966, 16091, 16191, 16891, 19061, 19161, 19861, 60009, 60109, 60809, 61019, 61119, 61819, 66099, 66199, 66899, 68089, 68189, 68889, 69069, 69169, 69869, 86098, 86198, 86898, 89068, 89168 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Nonpalindromic numbers which are invariant under a 180 degree rotation. Numbers that are the same upside down and containing digits 6, 9. Intersection of A000787 and A029742. Union of this sequence and A006072 gives A000787. LINKS MATHEMATICA fQ[n_] := Block[{s = {0, 1, 6, 8, 9}, id = IntegerDigits[n]}, If[ Union[ Join[s, id]] == s && (id /. {6 -> 9, 9 -> 6}) == Reverse[id], True, False]]; Select[ Range[0, 89168], fQ[ # ] && ! PalindromeQ[ # ] &] CROSSREFS Cf. A000787, A007597, A018848, A029742, A006072, A153806, A169731. Sequence in context: A039434 A043257 A044037 * A111065 A227271 A004237 Adjacent sequences:  A287089 A287090 A287091 * A287093 A287094 A287095 KEYWORD nonn,base AUTHOR Ilya Gutkovskiy, May 19 2017 STATUS approved

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Last modified January 25 05:31 EST 2021. Contains 340416 sequences. (Running on oeis4.)