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A130465 Triangle where the n-th row consists of the n smallest positive integers which are coprime to the number of divisors of n. 1
1, 1, 3, 1, 3, 5, 1, 2, 4, 5, 1, 3, 5, 7, 9, 1, 3, 5, 7, 9, 11, 1, 3, 5, 7, 9, 11, 13, 1, 3, 5, 7, 9, 11, 13, 15, 1, 2, 4, 5, 7, 8, 10, 11, 13, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 1, 5, 7, 11, 13, 17, 19, 23, 25, 29, 31, 35, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
EXAMPLE
Triangle begins:
1,
1, 3,
1, 3, 5,
1, 2, 4, 5,
1, 3, 5, 7, 9,
1, 3, 5, 7, 9, 11,
...
CROSSREFS
Sequence in context: A087493 A118125 A143732 * A348417 A356663 A272120
KEYWORD
nonn,tabl
AUTHOR
Leroy Quet, May 27 2007
EXTENSIONS
More terms from D. S. McNeil, Mar 23 2009
STATUS
approved

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Last modified March 1 13:15 EST 2024. Contains 370433 sequences. (Running on oeis4.)