A164890 - OEIS

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A164890

Primes with digit sum 9*k+1.

19, 199, 919, 991, 1999, 9199, 99991, 199999, 991999, 999199, 9999991, 19999999, 99991999, 9199999999, 99999199999, 99999991999, 991999999999, 999999991999, 9919999999999, 99999999991999, 99999999999199, 919999999999999 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`Each prime contains one 1 and k 9's. Corresponding k's are: 1,2,2,2,3,3,4,5,5,5,6,7,7,9,10,10,11,11,12,13,13,14,14,14,15,16,16,16,18,18,18,19,19,21,21,21,22,23,23,23,24,24,25,25,26,26,26,26,26,26,27,27,28,29,29,30,30`
	CROSSREFS	`A007953, A055558.` `Sequence in context: A141995 A097445 A058370 * A066007 A147830 A135162` `Adjacent sequences: A164887 A164888 A164889 * A164891 A164892 A164893`
	KEYWORD	`base,nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Aug 29 2009`

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Last modified February 16 12:15 EST 2012. Contains 205909 sequences.