id:A019436 - OEIS Search Results

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Size of smallest directed 1-covering code of length n with banded structure.

+0
3

1, 2, 3, 6, 10, 18, 31, 60, 106, 196, 352 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`D. Applegate, E. M. Rains and N. J. A. Sloane, On asymmetric coverings and covering numbers, J. Comb. Des. 11 (2003), 218-228.` `Index entries for sequences related to covering codes`
	CROSSREFS	`Provides upper bound for A066000.` `Sequence in context: A082482 A066000 A011957 this_sequence A147852 A061279 A018073` `Adjacent sequences: A019433 A019434 A019435 this_sequence A019437 A019438 A019439`
	KEYWORD	`nonn,hard,nice`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Dec 07 2001`

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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.