id:A140539 - OEIS Search Results

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a(n) is smallest number with divisors which are congruent to 1, 2, ..., n-1 mod n.

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1, 1, 2, 6, 8, 30, 12, 60, 96, 270, 90, 420, 72, 1638, 840, 1080, 300, 4410, 432, 5940, 3360, 6930, 540, 10920, 2880, 19890, 9360, 27300, 1680, 43890, 1200, 36720, 84480, 151470, 97440, 107100, 3780, 139650, 120120, 83160, 4800, 395850, 5040, 318780, 191520, 217350 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`Andrew Weimholt, Table of n, a(n) for n = 1..125`
	EXAMPLE	`a(7)=12: 12's divisors are 1,2,3,4,6,12 and` `1 == 1 mod 7` `2 == 2 mod 7` `3 == 3 mod 7` `4 == 4 mod 7` `12 == 5 mod 7` `6 == 6 mod 7`
	CROSSREFS	`Sequence in context: A116083 A115506 A057852 this_sequence A056188 A020696 A132269` `Adjacent sequences: A140536 A140537 A140538 this_sequence A140540 A140541 A140542`
	KEYWORD	`nonn`
	AUTHOR	`Andrew Weimholt (andrew(AT)weimholt.com), Jul 04 2008`

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.

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