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A064041
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Number of divisors of A064040(n).
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1
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4, 4, 6, 4, 4, 6, 6, 4, 4, 8, 4, 6, 8, 4, 4, 4, 9, 4, 4, 8, 8, 6, 6, 4, 10, 6, 4, 6, 8, 4, 8, 4, 4, 12, 4, 6, 4, 8, 6, 4, 8, 12, 4, 6, 6, 4, 8, 10, 4, 12, 4, 4, 4, 8, 12, 4, 6, 4, 4, 4, 12, 6, 6, 9, 8, 8, 8, 4, 12, 8, 4, 10, 8, 4, 6, 6, 4, 4, 16, 4, 4, 6, 12, 4, 8, 12, 4, 4, 8, 8, 8, 12, 4, 4, 4, 15, 4
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,1000
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EXAMPLE
| a(17) = 9 since 36 is the 17th number with prime number of prime divisors and 36 is divisible by 9 numbers.
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PROG
| (PARI) { n=0; for (m=1, 10^9, if (isprime(omega(m)), write("b064041.txt", n++, " ", numdiv(m)); if (n==1000, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 06 2009]
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CROSSREFS
| Cf. A064040.
Sequence in context: A195781 A059656 A205373 * A077553 A010659 A131089
Adjacent sequences: A064038 A064039 A064040 * A064042 A064043 A064044
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KEYWORD
| nonn
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AUTHOR
| Lior Manor (lior.manor(AT)gmail.com) Aug 23 2001
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