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 A216348 Numbers that appear in either both A156242(n) + 1 and A156243(n) or both A156242(n) and A156243(n) + 1. 0
 6, 7, 10, 15, 20, 21, 24, 25, 30, 33, 34, 37, 42, 43, 46, 47, 50, 55, 60, 61, 64, 69, 72, 73, 76, 77, 82, 87, 88, 91, 96, 101, 102, 105, 106, 109, 114, 117, 118, 123, 128, 129, 132, 137, 142, 143, 146, 147 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE 6 is in both A156242 and A156243 + 1. 7 is in both A156242 + 1 and A156243. MATHEMATICA n = 10; t = Prepend[Nest[Flatten[Partition[#, 2] /. {{2, 2} -> {2, 2, 1, 1}, {2, 1} -> {2, 2, 1}, {1, 2} -> {2, 1, 1}, {1, 1} -> {2, 1}}] &, {2, 2}, n], 1]; t2 = Accumulate[t]; {t3, t4} = Transpose[Partition[t2, 2]]; Union[Intersection[t3, t4 + 1], Intersection[t3 + 1, t4]] (* T. D. Noe, Sep 26 2012 *) CROSSREFS Cf. A156242, A156243, A054353. Sequence in context: A315831 A287386 A287803 * A114949 A081359 A117618 Adjacent sequences:  A216345 A216346 A216347 * A216349 A216350 A216351 KEYWORD nonn AUTHOR Jon Perry, Sep 04 2012 STATUS approved

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Last modified December 13 03:41 EST 2019. Contains 329968 sequences. (Running on oeis4.)