A165851 Totally multiplicative sequence with a(p) = 30.

1, 30, 30, 900, 30, 900, 30, 27000, 900, 900, 30, 27000, 30, 900, 900, 810000, 30, 27000, 30, 27000, 900, 900, 30, 810000, 900, 900, 27000, 27000, 30, 27000, 30, 24300000, 900, 900, 900, 810000, 30, 900, 900, 810000, 30, 27000, 30, 27000, 27000

Offset

1,2

Links

G. C. Greubel, Table of n, a(n) for n = 1..10000

Formula

a(n) = A009974(A001222(n)) = 30^bigomega(n) = 30^A001222(n).

Mathematica

30^PrimeOmega[Range[50]] (* Harvey P. Dale, May 04 2015 *)

Prog

(PARI) a(n) = 30^bigomega(n); \\ Michel Marcus, Apr 14 2016
(Magma) [n eq 1 select 1 else 30^(&+[p[2]: p in Factorization(n)]): n in [1..120]]; // Vincenzo Librandi, Apr 14 2016

Crossrefs

Cf. A001222, A009974.

Sequence in context: A185487 A051723 A247517 * A162503 A003896 A114964

Adjacent sequences: A165848 A165849 A165850 * A165852 A165853 A165854

Keyword

nonn,mult

Author

Jaroslav Krizek, Sep 28 2009

Status

approved