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A070521 Value of p(n)-th cyclotomic polynomial at n. 1
2, 7, 121, 5461, 12207031, 2612138803, 38771752331201, 20587884010836553, 1107867264956562636991, 11111111111111111111111111111, 19194342495775048050414684129181 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..11.

FORMULA

a(n)=Cyclotomic[Prime[n], n]

EXAMPLE

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).

MATHEMATICA

Table[Cyclotomic[Prime[w], w], {w, 1, 25}]

CROSSREFS

Cf. A070518-A070520.

Sequence in context: A034902 A101429 A206151 * A000889 A041727 A120379

Adjacent sequences:  A070518 A070519 A070520 * A070522 A070523 A070524

KEYWORD

nonn

AUTHOR

Labos Elemer, May 02 2002

STATUS

approved

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Last modified August 29 05:24 EDT 2015. Contains 261185 sequences.