id:A154568 - OEIS Search Results

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Composites of the form sum of digits of n + sum of digits of prime(n).

+0
1

8, 10, 15, 18, 14, 12, 6, 9, 12, 15, 22, 16, 10, 20, 16, 10, 18, 21, 8, 14, 10, 20, 22, 16, 21, 26, 15, 22, 16, 18, 21, 26, 15, 24, 18, 15, 21, 15, 24, 22, 30, 20, 22, 15, 18, 20, 27, 33, 26, 26, 24, 27, 34, 34, 21, 22, 22, 21, 32, 32, 28, 22, 27, 27, 36 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`If n=3 and prime=5, then 3+5=8(c0mposite)=a(1). If n=6 and prime=13, then 6+1+3=10(composite)=a(2), etc.`
	CROSSREFS	`Cf. A000040, A002808.` `Sequence in context: A100718 A063190 A101763 this_sequence A020940 A058633 A165143` `Adjacent sequences: A154565 A154566 A154567 this_sequence A154569 A154570 A154571`
	KEYWORD	`nonn,base`
	AUTHOR	`Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 12 2009`

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Last modified December 6 13:45 EST 2009. Contains 170429 sequences.

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