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 A144205 Fibonacci numbers containing an equal number of odd and even digits. 5
 21, 34, 89, 4181, 6765, 196418, 514229, 39088169, 7778742049, 139583862445, 365435296162, 10610209857723, 27777890035288, 44945570212853, 1304969544928657, 8944394323791464, 679891637638612258 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Robert G. Wilson v, Table of n, a(n) for n = 1..119 EXAMPLE 139583862445 is a Fibonacci number with an equal number of odd and even digits. MATHEMATICA fQ[n_] := Block[{id = IntegerDigits@ n}, Length@ Select[id, OddQ@ # &] == Length@ id/2]; lst = {}; Do[ fb = Fibonacci@ n; If[ fQ@ fb, AppendTo[lst, fb]], {n, 300}]; lst (* Robert G. Wilson v, Sep 24 2008 *) CROSSREFS Cf. A000045, A199635 (indices of these Fibonacci numbers). Sequence in context: A075735 A053409 A253910 * A261408 A008946 A095738 Adjacent sequences:  A144202 A144203 A144204 * A144206 A144207 A144208 KEYWORD nonn,base AUTHOR Parthasarathy Nambi, Sep 13 2008 EXTENSIONS More terms from Robert G. Wilson v, Sep 24 2008 STATUS approved

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Last modified June 24 22:23 EDT 2021. Contains 345445 sequences. (Running on oeis4.)