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Search: id:A130418
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A130418 Triangle (of n terms per row) where t(n,m) = the m-th positive integer which is coprime to n!. +0
2
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; listen)
OFFSET

1,3

LINKS

Leroy Quet, Home Page (listed in lieu of email address)

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

CROSSREFS

Cf. A119992, A130419.

Sequence in context: A108283 A140950 A016600 this_sequence A038871 A143524 A134249

Adjacent sequences: A130415 A130416 A130417 this_sequence A130419 A130420 A130421

KEYWORD

nonn,tabl

AUTHOR

Leroy Quet May 25 2007

EXTENSIONS

More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 15 2007

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.


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