A070521 Value of prime(n)-th cyclotomic polynomial at n.

2, 7, 121, 5461, 12207031, 2612138803, 38771752331201, 20587884010836553, 1107867264956562636991, 11111111111111111111111111111, 19194342495775048050414684129181, 773238409074645649506921062192257266781, 391287702091575733090747617444785169589677401

Offset: 1

Author

Labos Elemer, May 02 2002

Keywords

• nonn

Examples

			n=3: Cyclotomic[prime(3),x]=C[5,3]=[1+x+xx+xxx+xxxx,at x=3]; it is 1+3+9+27+81=121=a(3).
		

Crossrefs

Cf. A070518-A070520.

Programs

Mathematica

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

PARI

a(n) = polcyclo(prime(n), n); \\ Michel Marcus, Aug 29 2019

Formula

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

Extensions

More terms from Michel Marcus, Aug 29 2019