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Search: id:A079405
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| A079405 |
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Number of dots in primes in Braille. |
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+0
2
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| 2, 2, 2, 4, 2, 3, 5, 3, 4, 4, 3, 6, 4, 5, 7, 4, 4, 4, 7, 5, 6, 6, 5, 5, 6, 2, 3, 5, 3, 4, 7, 4, 7, 5, 6, 4, 7, 6, 8, 7, 7, 5, 4, 5, 7, 5, 4, 6, 8, 6, 6, 6, 6, 5, 8, 7, 7, 7, 10, 6, 7, 6
(list; graph; listen)
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OFFSET
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0,1
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LINKS
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American Foundation for the Blind, Braille Bug
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EXAMPLE
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The 5-th prime is 11, hence a(11)=1+1=2
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PROGRAM
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(PARI) { braille=[3, 1, 2, 2, 3, 2, 3, 4, 3, 2]; forprime (n=2, 300, b=braille[n%10+1]; n2=n; if (n>99, b=b+braille[n\100+1]; n2=n%100); if (n2>9, b=b+braille[n2\10+1]); print1(b", ")) }
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CROSSREFS
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Cf. A079399, A072283.
Sequence in context: A069930 A066761 A108920 this_sequence A072048 A072056 A066012
Adjacent sequences: A079402 A079403 A079404 this_sequence A079406 A079407 A079408
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KEYWORD
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nonn
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AUTHOR
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Jon Perry (perry(AT)globalnet.co.uk), Feb 16 2003
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