

A070521


Value of p(n)th cyclotomic polynomial at n.


1



2, 7, 121, 5461, 12207031, 2612138803, 38771752331201, 20587884010836553, 1107867264956562636991, 11111111111111111111111111111, 19194342495775048050414684129181
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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. A070518A070520.
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



