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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A039422 Numbers whose base-10 representation has the same nonzero number of 3's and 9's. 0 39, 93, 139, 193, 239, 293, 309, 319, 329, 349, 359, 369, 379, 389, 390, 391, 392, 394, 395, 396, 397, 398, 439, 493, 539, 593, 639, 693, 739, 793, 839, 893, 903, 913, 923, 930, 931, 932, 934, 935, 936, 937, 938, 943, 953, 963, 973, 983, 1039, 1093 (list; graph; refs; listen; history; text; internal format) OFFSET 1,1 LINKS Table of n, a(n) for n=1..50. CROSSREFS Sequence in context: A242181 A020168 A063318 * A043245 A044025 A062668 Adjacent sequences: A039419 A039420 A039421 * A039423 A039424 A039425 KEYWORD nonn,base,easy AUTHOR Olivier Gérard STATUS approved

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Last modified August 18 11:16 EDT 2024. Contains 375265 sequences. (Running on oeis4.)