id:A095323 - OEIS Search Results

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Primes in whose binary expansion the number of 1-bits is <= 4 + number of 0-bits.

+0
5

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 193, 197, 199, 211, 227, 229, 233, 241, 257, 263, 269, 271, 277, 281, 283, 293 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Differs from primes (A000040) first time at n=11, where a(11)=37, while A000040(11)=31, as 31 whose binary expansion is 11111, with 5 1-bits and no 0-bits is the first prime excluded from this sequence. Note that 15 (1111 in binary) is not prime.`
	LINKS	`A. Karttunen and J. Moyer: C-program for computing the initial terms of this sequence`
	CROSSREFS	`Complement of A095322 in A000040. Subset of A095285. subset: A095319. A095325.` `Adjacent sequences: A095320 A095321 A095322 this_sequence A095324 A095325 A095326` `Sequence in context: A051750 A100724 A100110 this_sequence A100370 A095319 A129621`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (his-firstname.his-surname(AT)iki.fi), Jun 04 2004`

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Last modified October 13 09:05 EDT 2008. Contains 145008 sequences.

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