|
| |
|
|
A106620
|
|
Numerator of n/(n+19).
|
|
1
| |
|
|
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 1, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 2, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 3, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,3
|
|
|
FORMULA
| Dirichlet g.f. zeta(s-1)*(1-18/19^s). - R. J. Mathar, Apr 18 2011
|
|
|
MATHEMATICA
| f[n_]:=Numerator[n/(n+19)]; Array[f, 100, 0] (*From Vladimir Joseph Stephan Orlovsky, Feb 17 2011*)
|
|
|
PROG
| (Other) sage: [lcm(n, 19)/19for n in xrange(0, 75)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 12 2009]
(MAGMA) [Numerator(n/(n+19)): n in [0..100]]; // Vincenzo Librandi, Apr 18 2011
|
|
|
CROSSREFS
| Sequence in context: A093616 A089247 A167974 * A080685 A074805 A121761
Adjacent sequences: A106617 A106618 A106619 * A106621 A106622 A106623
|
|
|
KEYWORD
| nonn,frac,mult
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), May 15 2005
|
| |
|
|
