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Search: id:A085320
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| A085320 |
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First difference sequence of A003349, i.e. consecutive differences between those consecutive numbers which are sums of four 5th powers. |
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+0
1
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| 31, 31, 31, 31, 118, 31, 31, 31, 149, 31, 31, 180, 31, 211, 55, 31, 31, 31, 149, 31, 31, 180, 31, 211, 297, 31, 31, 180, 31, 211, 539, 31, 24, 31, 31, 31, 94, 55, 31, 31, 180, 31, 211, 242, 55, 31, 31, 180, 31, 211, 539, 31, 211, 781, 55, 31, 31, 180, 31, 211, 539, 31
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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35=1+1+1+32, 66=32+32+1+1, a(1)=66-33=31.
Certain differences occur rather consequently like
31,55,113,180,207,211,539 etc..;
Distance of closest observed neighbors equals 2
like those of: 33858 and 33856.
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MATHEMATICA
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{m=12, k=5, m^k}; t=Union[Flatten[Table[Table[Table[Table[w^k+q^k+t^k+u^k, {w, 1, m}], {q, 1, m}], {t, 1, m}], {u, 1, m}]]]; Length[t]; dt=Delete[ -RotateRight[t]+t, 1]; Sort[dt]
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CROSSREFS
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Cf. A003349, A003327-A003399.
Sequence in context: A009734 A010870 A003892 this_sequence A040931 A022365 A070921
Adjacent sequences: A085317 A085318 A085319 this_sequence A085321 A085322 A085323
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Jul 01 2003
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