id:A054219 - OEIS Search Results

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Concatenation of n in base 10 down to base 2 is divisible by at least one of these base b numbers, all numbers interpreted as decimals.

+0
2

1, 2, 3, 4, 5, 8, 9, 10, 15, 16, 20, 22, 25, 38, 40, 44, 50, 55, 66, 68, 74, 75, 80, 95, 100, 110, 111, 125, 144, 175, 200, 230, 240, 250, 260, 265, 267, 268, 269, 300, 301, 316, 358, 375, 400, 440, 453, 476, 500, 514, 542, 620, 688, 875, 1000, 1096, 1120, 1250 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`E.g. n=9 -> 9{10}=10{9}=11{8}=12{7}=13{6}=14{5}=21{4}=100{3}=1001{2} -> 91011121314211001001 which is divisible by 21 (from 9 in base 4).`
	CROSSREFS	`Cf. A054220.` `Sequence in context: A102471 A094566 A087278 this_sequence A116214 A161389 A044051` `Adjacent sequences: A054216 A054217 A054218 this_sequence A054220 A054221 A054222`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Feb 15 2000.`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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