id:A116443 - OEIS Search Results

Search: id:A116443

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Numbers n which when sandwiched between two 8's give a multiple of n.

+0
2

1, 2, 4, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 137, 146, 274, 292, 548, 584, 9091, 19802, 39604, 79208, 909091, 5882353, 10989011, 12987013, 13986014, 15037594, 16194332, 19138756, 21978022, 25974026, 27972028, 30075188 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`91 belongs since 8918 is a multiple 91 (91*98).`
	MATHEMATICA	`f[k_, d_] := Flatten@Table[Select[Divisors[k(10^(i + 1) + 1)], IntegerLength[ # ] == i &], {i, d}]; f[8, 8] (Chandler*)`
	CROSSREFS	`Cf. A116436-A116444.` `Adjacent sequences: A116440 A116441 A116442 this_sequence A116444 A116445 A116446` `Sequence in context: A080152 A136994 A137288 this_sequence A078649 A022442 A056689`
	KEYWORD	`base,nonn`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 15 2006`

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Last modified October 13 17:46 EDT 2008. Contains 145008 sequences.

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