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 A136603 Positive numbers having a unique representation by inserting minus and plus-signs in 123456789. 3
 176, 191, 194, 196, 209, 213, 215, 217, 223, 237, 253, 259, 263, 272, 274, 275, 289, 290, 292, 293, 295, 305, 307, 308, 353, 361, 367, 379, 380, 381, 382, 386, 392, 399, 401, 405, 415, 416, 418, 419, 427, 443, 461, 463, 467, 475, 477, 479, 481, 490, 491 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A066957(a(n)) = 1; subsequence of A136601; the sequence is finite with 869 terms. LINKS R. Zumkeller, Table of n, a(n) for n = 1..869 (full sequence) EXAMPLE a(1) = 176 = 1 - 2 + 34 + 56 + 78 + 9; a(2) = 191 = 123 + 4 + 56 + 7 - 8 + 9; a(3) = 194 = 1 - 2 + 34 + 5 + 67 + 89; a(4) = 196 = -1 + 2 + 34 + 5 + 67 + 89; a(5) = 209 = 1 + 234 + 56 + 7 - 89; a(6) = 213 = 123 + 4 + 5 - 6 + 78 + 9; a(7) = 215 = 123 + 4 - 5 + 6 + 78 + 9; a(8) = 217 = 123 - 4 + 5 + 6 + 78 + 9; a(9) = 223 = -1 + 23 + 45 + 67 + 89; a(10) = 237 = -123 + 456 - 7 - 89; a(11) = 253 = -1 + 2 + 345 - 6 - 78 - 9; a(12) = 259 = -1 + 234 - 56 - 7 + 89; a(869) = 123456789 = A136602(1715). CROSSREFS Sequence in context: A172685 A266058 A261678 * A114824 A305062 A336026 Adjacent sequences:  A136600 A136601 A136602 * A136604 A136605 A136606 KEYWORD nonn,fini,full,base AUTHOR Reinhard Zumkeller, Jan 12 2008 STATUS approved

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Last modified August 5 07:21 EDT 2020. Contains 336209 sequences. (Running on oeis4.)