A088379 (Smallest prime-factor of n)^4.

1, 16, 81, 16, 625, 16, 2401, 16, 81, 16, 14641, 16, 28561, 16, 81, 16, 83521, 16, 130321, 16, 81, 16, 279841, 16, 625, 16, 81, 16, 707281, 16, 923521, 16, 81, 16, 625, 16, 1874161, 16, 81, 16, 2825761, 16, 3418801, 16, 81, 16, 4879681, 16, 2401, 16

Offset

1,2

Comments

a(n) = A000583(A020639(n)).

Links

Table of n, a(n) for n=1..50.

Eric Weisstein's World of Mathematics, Least Prime Factor

Eric Weisstein's World of Mathematics, Biquadratic Number

Crossrefs

Cf. A088377, A088378.

Sequence in context: A119508 A330480 A334660 * A005065 A056553 A053167

Adjacent sequences: A088376 A088377 A088378 * A088380 A088381 A088382

Keyword

nonn

Author

Reinhard Zumkeller, Sep 28 2003

Status

approved