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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

Table of n, a(n) for n=1..87.

CROSSREFS

Cf. A122212, A130465.

Sequence in context: A317750 A188732 A085189 * A239306 A129322 A089984

Adjacent sequences:  A130463 A130464 A130465 * A130467 A130468 A130469

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 December 9 08:41 EST 2021. Contains 349627 sequences. (Running on oeis4.)