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A064144
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tau(n!+1) or number of divisors of n!+1.
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1
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2, 2, 2, 3, 3, 4, 3, 4, 8, 4, 2, 6, 4, 4, 8, 32, 8, 64, 4, 4, 8, 8, 12, 4, 4, 4, 2, 4, 8, 32, 16, 16, 32, 4, 32, 64, 2, 4, 16, 128, 2, 8, 16, 8, 8, 8, 16, 4, 32, 32, 64, 16, 16, 4, 4, 16, 8, 16, 4, 16, 16, 8, 32, 8
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..64.
Hisanori Mishima, Factorizations of many number sequences
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MATHEMATICA
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Do[ Print[ DivisorSigma[0, n! + 1]], {n, 1, 40} ]
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PROG
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(PARI) { f=1; for (n=1, 100, f*=n; write("b064144.txt", n, " ", numdiv(f + 1)) ) } [From Harry J. Smith, Sep 09 2009]
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CROSSREFS
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Cf. A000005, A027423, A002981, A002982.
Sequence in context: A003050 A070868 A155216 * A077105 A173752 A153847
Adjacent sequences: A064141 A064142 A064143 * A064145 A064146 A064147
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KEYWORD
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nonn
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AUTHOR
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Vladeta Jovovic, Sep 11 2001
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EXTENSIONS
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More terms from Robert G. Wilson v, Oct 04 2001
23 more terms, a(42) - a(64), from Harry J. Smith, Sep 09 2009
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STATUS
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approved
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