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 A194429 Numbers n such that there is no i >= 0 for which A053392(i) = n. 1
 110, 120, 121, 130, 131, 132, 140, 141, 142, 143, 150, 151, 152, 153, 154, 160, 161, 162, 163, 164, 165, 170, 171, 172, 173, 174, 175, 176, 180, 181, 182, 183, 184, 185, 186, 187, 190, 191, 192, 193, 194, 195, 196, 197, 198, 220, 230, 231, 240, 241, 242, 250, 251, 252, 253, 260, 261, 262, 263, 264, 270, 271, 272, 273, 274, 275, 280, 281 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The Friedman web site quotes B. J. van der Zwaag as saying that the three-digit terms are those for which the middle digit is >= the sum of the other two digits. LINKS Table of n, a(n) for n=1..68. Erich Friedman, Problem of the Month (February 2000). CROSSREFS Cf. A053392. Sequence in context: A279421 A135642 A166323 * A320121 A084042 A110735 Adjacent sequences: A194426 A194427 A194428 * A194430 A194431 A194432 KEYWORD nonn,base AUTHOR N. J. A. Sloane, Aug 24 2011 STATUS approved

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Last modified September 8 11:24 EDT 2024. Contains 375753 sequences. (Running on oeis4.)