A014499 - OEIS

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A014499

Number of 1's in binary representation of n-th prime.

1, 2, 2, 3, 3, 3, 2, 3, 4, 4, 5, 3, 3, 4, 5, 4, 5, 5, 3, 4, 3, 5, 4, 4, 3, 4, 5, 5, 5, 4, 7, 3, 3, 4, 4, 5, 5, 4, 5, 5, 5, 5, 7, 3, 4, 5, 5, 7, 5, 5, 5, 7, 5, 7, 2, 4, 4, 5, 4, 4, 5, 4, 5, 6, 5, 6, 5, 4, 6, 6, 4, 6, 7, 6, 7, 8, 4, 5, 4, 5, 5, 5, 7, 5, 7, 7, 4, 5, 6, 7, 6, 8, 7, 7, 7, 8, 8, 3, 4 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`a(n)=A000120(A000040(n)).` `a(A049084(A061712(n))) = n. - Reinhard Zumkeller, Feb 10 2013`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..10000`
	MATHEMATICA	`f[n_]:=Plus@@IntegerDigits[n, 2]; lst={}; Do[p=Prime[n]; AppendTo[lst, f[p]], {n, 6!}]; lst [From Vladimir Joseph Stephan Orlovsky, Oct 10 2009]`
	PROG	`(PARI) A014499(n)=norml2(binary(prime(n))) [From M. F. Hasler, Nov 20 2009]` `(Haskell)` `a014499 = a000120 . a000040 -- Reinhard Zumkeller, Feb 10 2013`
	CROSSREFS	`Cf. A035103, A035100, A004676, A090455.` `Cf. A027697, A027699` `Cf. A180024. [From Reinhard Zumkeller, Aug 08 2010]` `Cf. A072084.` `Sequence in context: A108133 A194883 A175453 * A055778 A106482 A122462` `Adjacent sequences: A014496 A014497 A014498 * A014500 A014501 A014502`
	KEYWORD	`nonn,base,easy`
	AUTHOR	`Ingemar Assarsjo (ingemar(AT)binomen.se)`
	STATUS	`approved`

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Last modified May 25 23:56 EDT 2013. Contains 225650 sequences.