id:A014499 - OEIS Search Results

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

+0
19

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; listen)

	OFFSET	`1,2`
	COMMENT	`a(n)=A000120(A000040(n)).`
	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 Orlovsky (4vladimir(AT)gmail.com), Oct 10 2009]`
	CROSSREFS	`Cf. A035103, A035100, A004676, A090455.` `Cf. A027697, A027699` `Adjacent sequences: A014496 A014497 A014498 this_sequence A014500 A014501 A014502` `Sequence in context: A165001 A059253 A108133 this_sequence A055778 A106482 A122462`
	KEYWORD	`nonn,base,easy`
	AUTHOR	`Ingemar Assarsjo (ingemar(AT)binomen.se)`

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.

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