id:A118952 - OEIS Search Results

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Characteristic function of numbers that can be written as p+2^k, where p is prime and p less than 2^k (A118957).

+0
5

0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`0 <= a(n) <= 1, a(n) <= A109925(n);` `a(A118956(n)) = 0, a(A118957(n)) = 1;` `A118953(n) = a(A000040(n)).`
	LINKS	`Index entries for characteristic functions`
	CROSSREFS	`Sequence in context: A011667 A144195 A011759 this_sequence A011668 A011670 A011666` `Adjacent sequences: A118949 A118950 A118951 this_sequence A118953 A118954 A118955`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 07 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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