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A130418
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Triangle (of n terms per row) where t(n,m) = the m-th positive integer which is coprime to n!.
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1
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1, 1, 3, 1, 5, 7, 1, 5, 7, 11, 1, 7, 11, 13, 17, 1, 7, 11, 13, 17, 19, 1, 11, 13, 17, 19, 23, 29, 1, 11, 13, 17, 19, 23, 29, 31, 1, 11, 13, 17, 19, 23, 29, 31, 37, 1, 11, 13, 17, 19, 23, 29, 31, 37, 41, 1, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 1, 13, 17, 19, 23, 29, 31, 37, 41, 43
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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EXAMPLE
| Triangle starts
.1
.1..3
.1..5..7
.1..5..7.11
.1..7.11.13.17
.1..7.11.13.17.19
.1.11.13.17.19.23.29
.1.11.13.17.19.23.29.31
.1.11.13.17.19.23.29.31.37
.1.11.13.17.19.23.29.31.37.41
.1.13.17.19.23.29.31.37.41.43.47
.1.13.17.19.23.29.31.37.41.43.47.53
.1.17.19.23.29.31.37.41.43.47.53.59.61
.1.17.19.23.29.31.37.41.43.47.53.59.61.67
.1.17.19.23.29.31.37.41.43.47.53.59.61.67.71
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CROSSREFS
| Cf. A119992, A130419.
Sequence in context: A140950 A205713 A016600 * A038871 A193648 A201811
Adjacent sequences: A130415 A130416 A130417 * A130419 A130420 A130421
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KEYWORD
| nonn,tabl
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AUTHOR
| Leroy Quet May 25 2007
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EXTENSIONS
| More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 15 2007
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