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A051229
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Bernoulli number B_{2n} has denominator 66.
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6
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5, 25, 85, 185, 235, 295, 305, 335, 355, 365, 395, 425, 505, 535, 635, 685, 695, 745, 815, 835, 925, 985, 995, 1115, 1135, 1145, 1285, 1315, 1345, 1385, 1415, 1445, 1475, 1525, 1535, 1555, 1565, 1585, 1655, 1675, 1735, 1765
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OFFSET
| 1,1
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COMMENTS
| From the Von Staudt-Clausen theorem, denominator(B_2n) = product of primes p such that (p-1)|2n.
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REFERENCES
| B. C. Berndt, Ramanujan's Notebooks Part IV, Springer-Verlag, see p. 75.
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..1000
Index entries for sequences related to Bernoulli numbers.
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CROSSREFS
| Cf. A045979, A051222, A051225-A051230. Equals A051230/2.
Sequence in context: A147114 A131537 A147122 * A058919 A018212 A181477
Adjacent sequences: A051226 A051227 A051228 * A051230 A051231 A051232
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KEYWORD
| nonn,nice,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| More terms from Michael Somos.
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