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A063175
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Composites for which the row of the prime-composite array (A063173) includes the leftmost element of a zero-only diagonal (A067677).
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4
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15, 21, 39, 51, 55, 75, 91, 99, 105, 121, 159, 165, 169, 187, 195, 249, 265, 285, 309, 325, 327, 339, 351, 385, 441, 471, 481, 489, 511, 517, 531, 595, 609, 615, 625, 685, 789, 805, 841, 879, 891, 909, 915, 939, 951, 955, 987, 999, 1027, 1035, 1045, 1057
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| N. Fernandez, The prime-composite array, B(m,n) and the Borve conjectures
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EXAMPLE
| The 12th composite is 21. In the prime-composite array (A063173), all of the elements in the diagonal containing T(12,1) are 0. So 21 is in the sequence.
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CROSSREFS
| Cf. A063173, A063174, A063176, A067677.
Sequence in context: A095147 A081977 A180655 * A171569 A129752 A015831
Adjacent sequences: A063172 A063173 A063174 * A063176 A063177 A063178
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KEYWORD
| nonn
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AUTHOR
| N. Fernandez (primeness(AT)borve.org), Jul 09 2001
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EXTENSIONS
| Edited and extended by Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 07 2002
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