id:A109464 - OEIS Search Results

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Numbers n such that A112131(n) and A112131(n+1) are both Harshad numbers.

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9, 103207, 106039, 150200, 172003, 303714, 370649, 544019, 952640, 1000129, 1089247, 1104024, 1124514, 1243264, 1668275, 2030120, 2060910, 2304925, 2330000 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Conjecture: Sequence is infinite.`
	EXAMPLE	`a(1)=9 because 910/10 = 91 and 101112/6 = 16852.`
	CROSSREFS	`Cf. A109448.` `Sequence in context: A058456 A014381 A034995 this_sequence A120352 A058468 A076704` `Adjacent sequences: A109461 A109462 A109463 this_sequence A109465 A109466 A109467`
	KEYWORD	`base,more,nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Aug 28 2005`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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