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Search: id:A109256
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| A109256 |
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n^6 - 11*n^4 + 36*n^2 - 36. |
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+0
1
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| -36, -10, -4, 126, 1820, 9614, 33660, 92966, 219356, 462150, 893564, 1614830, 2763036, 4518686, 7113980, 10841814, 16065500, 23229206, 32869116, 45625310, 62254364, 83642670, 110820476, 144976646, 187474140, 239866214, 303913340
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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All primes are prime divisors.
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REFERENCES
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G. Polya and G. Szego, Problems and Theorems in Analysis I (Springer 1924, reprinted 1972), Part Eight, Chap. 2, Sect. 1, Problem 102.
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FORMULA
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a(n) = (n^2 - 2)*(n^2 - 3)*(n^2 - 6).
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CROSSREFS
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Sequence in context: A037935 A100252 A020340 this_sequence A066583 A073405 A056770
Adjacent sequences: A109253 A109254 A109255 this_sequence A109257 A109258 A109259
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KEYWORD
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sign
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AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Aug 20 2005
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