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Search: id:A079396
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| A079396 |
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Ramanujan's tau function squared. |
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+0
1
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| 576, 63504, 23328900, 280361536, 285809990544, 333781196644, 47691924412356, 113665876416400, 347571590865984, 16488262627956900, 2792400404276224, 33201691798862596, 94938206778275364, 293289874501264
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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tau(2)=-24, therefore a(1)=24^2=576.
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PROGRAM
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(PARI) T(n)=n*(n+1)/2 rtau3(n)=local(y, j); y=0; j=1; while (T(j-1)<n, j++); j--; for (i=1, j, y=y-(-1)^i*(2*i-1)*x^(T(i-1))); y=y^8; polcoeff(y, n-1) forprime (p=2, 50, print1(rtau3(p)^2", "))
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CROSSREFS
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A000594(p)^2.
Sequence in context: A067225 A036514 A168660 this_sequence A013775 A068277 A068289
Adjacent sequences: A079393 A079394 A079395 this_sequence A079397 A079398 A079399
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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), Jan 06 2003
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