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Search: id:A079392
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| A079392 |
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Ramanujan's tau function is positive. |
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+0
2
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| 1, 3, 5, 8, 11, 14, 15, 16, 18, 19, 23, 24, 26, 28, 29, 33, 34, 36, 40, 41, 42, 47, 48, 50, 52, 54, 55, 57, 61, 62, 63, 64, 68, 69, 70, 71, 73, 74, 78, 79, 80, 81, 84, 86, 87, 88, 90, 91, 95, 97, 98, 100
(list; graph; listen)
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OFFSET
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0,2
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EXAMPLE
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A000594(1)=1, therefore a(1)=1
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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) for (n=1, 100, if (rtau3(n)>0, print1(n", ")))
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CROSSREFS
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Cf. A079393, A000594.
Sequence in context: A022850 A008576 A047622 this_sequence A022852 A095375 A129260
Adjacent sequences: A079389 A079390 A079391 this_sequence A079393 A079394 A079395
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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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