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Search: id:A138409
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| A138409 |
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a(n) = (n-th prime)^6-(n-th prime)^2. |
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+0
56
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| 60, 720, 15600, 117600, 1771440, 4826640, 24137280, 47045520, 148035360, 594822480, 887502720, 2565725040, 4750102560, 6321361200, 10779213120, 22164358320, 42180530160, 51520370640, 90458377680, 128100278880
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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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^4-p^3 is given in A138403
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^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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MATHEMATICA
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a = {}; Do[p = Prime[n]; AppendTo[a, p^6 - p^2], {n, 1, 50}]; a
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CROSSREFS
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Cf. A036689, A127917, A135177, A138401, A138402, A138403, A138404, A138405, A138406, A138407, A138408, A138410, A138411, A138412.
Sequence in context: A136008 A000555 A034865 this_sequence A024016 A112042 A063011
Adjacent sequences: A138406 A138407 A138408 this_sequence A138410 A138411 A138412
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KEYWORD
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nonn
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Mar 19 2008
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