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A138403
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a(n) = (n-th prime)^4)-(n-th prime)^3.
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14
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8, 54, 500, 2058, 13310, 26364, 78608, 123462, 267674, 682892, 893730, 1823508, 2756840, 3339294, 4775858, 7741604, 11911982, 13618860, 19850358, 25053770, 28009224, 38457042, 46886534, 62037272, 87616608, 103030100, 111458154
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Differences p^k-p^m such that k > m:
p^2-p is given in A036689
p^3-p is given in A127917
p^3-p^2 is given in A135177
p^4-p is given in A138401
p^4-p^2 is given in A138402
p^5-p is given in A138404
p^5-p^2 is given in A138405
p^5-p^3 is given in A138406
p^5-p^4 is given in A138407
p^6-p is given in A138408
p^6-p^2 is given in A138409
p^6-p^3 is given in A138410
p^6-p^4 is given in A138411
p^6-p^5 is given in A138412
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 1..200
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MATHEMATICA
| a = {}; Do[p = Prime[n]; AppendTo[a, p^4 - p^3], {n, 1, 50}]; a
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PROG
| (PARI) forprime(p=2, 1e3, print1(p^4-p^3", ")) \\ Charles R Greathouse IV, Jun 16 2011
(MAGMA) [NthPrime((n))^4 - NthPrime((n))^3: n in [1..40] ]; // Vincenzo Librandi, Jun 17 2011
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CROSSREFS
| Sequence in context: A002775 A079754 A142703 * A013499 A134825 A052690
Adjacent sequences: A138400 A138401 A138402 * A138404 A138405 A138406
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KEYWORD
| nonn,easy
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AUTHOR
| Artur Jasinski (grafix(AT)csl.pl), Mar 19 2008
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