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Search: id:A095375
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| A095375 |
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Total number of 1's in the binary expansions of the first n primes: summatory A014499. |
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+0
3
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| 1, 3, 5, 8, 11, 14, 16, 19, 23, 27, 32, 35, 38, 42, 47, 51, 56, 61, 64, 68, 71, 76, 80, 84, 87, 91, 96, 101, 106, 110, 117, 120, 123, 127, 131, 136, 141, 145, 150, 155, 160, 165, 172, 175, 179, 184, 189, 196, 201, 206, 211, 218, 223, 230, 232, 236, 240, 245, 249, 253
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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n=4: first 4 primes={10,11,101,111},with a[4]=8 digit of 1.
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MATHEMATICA
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lib[x_] :=Count[IntegerDigits[x, 2], 1] {s=0, ta=Table[0, {256}]}; Do[s=s+lib[Prime[n]]; ta[[n]]=s, {n, 1, 256}] ta
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CROSSREFS
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Cf. A000120, A000788, A014499, A079584.
Sequence in context: A047622 A079392 A022852 this_sequence A129260 A076829 A084505
Adjacent sequences: A095372 A095373 A095374 this_sequence A095376 A095377 A095378
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Jun 07 2004
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