id:A136603 - OEIS Search Results

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Positive numbers having a unique representation by inserting minus and plus-signs in 123456789.

+0
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; listen)

	OFFSET	`1,1`
	COMMENT	`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`
	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	`Adjacent sequences: A136600 A136601 A136602 this_sequence A136604 A136605 A136606` `Sequence in context: A109836 A056935 A104651 this_sequence A114824 A063344 A075291`
	KEYWORD	`nonn,fini,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jan 12 2008`

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Last modified January 7 17:35 EST 2009. Contains 152824 sequences.

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