login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A143032 A sequence of asymptotic density zeta(6) - 1, where zeta is the Riemann zeta function. 10
31, 95, 159, 223, 287, 351, 415, 479, 482, 543, 607, 671, 735, 799, 863, 927, 968, 991, 1055, 1119, 1183, 1247, 1311, 1375, 1439, 1503, 1567, 1631, 1695, 1759, 1823, 1887, 1940, 1951, 2015, 2079, 2143, 2207, 2271, 2335, 2399, 2426, 2463, 2527, 2591, 2655 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Made up of a collection of mutually exclusive residue classes modulo multiples of factorials. A set of such sequences with entries for each zeta(k) - 1 partitions the integers. See the linked paper for their construction.

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

William J. Keith, Sequences of Density zeta(K) - 1, INTEGERS, Vol. 10 (2010), Article #A19, pp. 233-241. Also arXiv preprint, arXiv:0905.3765 [math.NT], 2009 and author's copy.

MATHEMATICA

f[n_] := Module[{k = n - 1, m = 2, r}, While[{k, r} = QuotientRemainder[k, m]; r != 0, m++]; IntegerExponent[k + 1, m] + 2]; Select[Range[2700], f[#] == 6 &] (* Amiram Eldar, Feb 15 2021 after Kevin Ryde at A161189 *)

CROSSREFS

Cf. A143028, A143029, A143030, A143031, A143033, A143034, A143035, A143036, A161189, A339013.

Sequence in context: A042898 A044218 A044599 * A159014 A256323 A142067

Adjacent sequences:  A143029 A143030 A143031 * A143033 A143034 A143035

KEYWORD

nonn

AUTHOR

William J. Keith, Jul 18 2008

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 14 19:53 EDT 2021. Contains 343903 sequences. (Running on oeis4.)