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Search: id:A070521
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| A070521 |
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Value of p(n)-th cyclotomic polynomial at n. |
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+0
2
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| 2, 7, 121, 5461, 12207031, 2612138803, 38771752331201, 20587884010836553, 1107867264956562636991, 11111111111111111111111111111, 19194342495775048050414684129181
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OFFSET
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1,1
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FORMULA
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a(n)=Cyclotomic[Prime[n], n]
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EXAMPLE
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n=3: Cyclotomic[p(3),x]=C[5,3]=[1+x+xx+xxx+xxxx,at x=3]; it is 1+3+9+27+81=121=a(3).
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MATHEMATICA
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Table[Cyclotomic[Prime[w], w], {w, 1, 25}]
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CROSSREFS
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Cf. A070518-A070520.
Sequence in context: A000157 A034902 A101429 this_sequence A000889 A041727 A120379
Adjacent sequences: A070518 A070519 A070520 this_sequence A070522 A070523 A070524
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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), May 02 2002
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