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 A037390 Numbers n such that every base 4 digit of n is a base 8 digit of n. 6
 1, 2, 3, 10, 42, 64, 65, 66, 67, 68, 69, 80, 85, 86, 90, 93, 95, 106, 128, 129, 130, 131, 136, 153, 160, 168, 169, 170, 171, 187, 192, 193, 194, 195, 234, 240, 250, 255, 257, 321, 514, 522, 528, 529, 530, 531, 532, 533, 534, 538 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 PROG (Haskell) import Data.List ((\\), nub) a037390 n = a037390_list !! (n-1) a037390_list = filter f [1..] where    f x = null \$ nub (ds 4 x) \\ nub (ds 8 x)    ds b x = if x > 0 then d : ds b x' else []  where (x', d) = divMod x b -- Reinhard Zumkeller, May 30 2013 CROSSREFS Cf. A037387, A037388, A037389, A037391, A037392. Sequence in context: A129716 A032293 A059733 * A024484 A007226 A032204 Adjacent sequences:  A037387 A037388 A037389 * A037391 A037392 A037393 KEYWORD nonn,base AUTHOR STATUS approved

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Last modified June 20 04:02 EDT 2013. Contains 226418 sequences.