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Search: id:A135161
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| A135161 |
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7^n-5^n-3^n-2^n. Constants are the prime numbers in decreasing order. |
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+0
1
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| -2, -3, 11, 183, 1679, 13407, 101231, 743103, 5367359
(list; graph; listen)
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OFFSET
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0,1
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FORMULA
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a(n)=7^n-5^n-3^n-2^n.
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EXAMPLE
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a(4)=1679 because 7^4=2401, 5^4=625, 3^4=81, 2^4=16 and we can write 2401-625-81-16=1679.
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CROSSREFS
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Cf. A000079, A000244, A000351, A000420, A001047, A074527, A007689, A135158, A135159, A135160.
Sequence in context: A058114 A042337 A061482 this_sequence A066100 A029497 A109809
Adjacent sequences: A135158 A135159 A135160 this_sequence A135162 A135163 A135164
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KEYWORD
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easy,sign
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), Nov 21 2007
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