A143039 a(n) = m-th prime power (not counting 1), where m = 10^n.

16, 419, 7517, 103511, 1295953, 15474787, 179390821, 2037968761, 22801415981, 252096675073, 2760723662941, 29996212395727, 323780470283789, 3475385632514321, 37124507635789309, 394906912575042053, 4185296577158764117, 44211790220874464021

Offset

1,1

References

J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 455, pp 84, Ellipses, Paris 2008.

Links

Table of n, a(n) for n=1..18.

Formula

a(n)=A000961(10^n + 1).

A025528(a(n)) = 10^n.

Crossrefs

Cf. A000961.

Sequence in context: A223714 A239645 A349966 * A281952 A316180 A305766

Adjacent sequences: A143036 A143037 A143038 * A143040 A143041 A143042

Keyword

nonn

Author

Lekraj Beedassy, Jul 18 2008

Extensions

Edited and extended by Max Alekseyev, May 13 2009

Status

approved