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A130466 Triangle where the n-th row consists of the n smallest positive integers which are coprime to the sum of divisors of n. 1
1, 1, 2, 1, 3, 5, 1, 2, 3, 4, 1, 5, 7, 11, 13, 1, 5, 7, 11, 13, 17, 1, 3, 5, 7, 9, 11, 13, 1, 2, 4, 7, 8, 11, 13, 14, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 5, 7, 11, 13, 17, 19, 23, 25, 29, 1, 5, 7, 11, 13, 17, 19, 23, 25, 29, 31, 1, 3, 5, 9, 11, 13, 15, 17, 19, 23, 25, 27, 1, 3, 5, 9, 11, 13, 15, 17, 19 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
CROSSREFS
Sequence in context: A317750 A188732 A085189 * A239306 A129322 A089984
KEYWORD
nonn,tabl
AUTHOR
Leroy Quet, May 27 2007
EXTENSIONS
More terms from Sean A. Irvine, Mar 02 2010
STATUS
approved

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Last modified February 23 21:40 EST 2024. Contains 370288 sequences. (Running on oeis4.)