login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A129646 Concatenated list of the positive divisors of the terms of sequence A129645. 1
1, 1, 2, 1, 3, 1, 7, 1, 2, 4, 8, 1, 5, 25, 1, 2, 13, 26, 1, 3, 61, 183, 1, 2, 4, 8, 23, 46, 92, 184, 1, 3, 9, 41, 123, 369, 1, 7, 211, 1477, 1, 3, 9, 13, 39, 101, 117, 303, 909, 1313, 3939, 11817, 1, 2, 19, 38, 311, 622, 5909, 11818, 1, 3, 19697, 59091 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..64.

FORMULA

a(n) = (A129645(n+1)-1)/A129645(n).

EXAMPLE

1;

1,2;

1,3;

1,7;

1,2,4,8;

1,5,25;

1,2,13,26;

1,3,61,183;

1,2,4,8,23,46,92,184;

CROSSREFS

Cf. A129645.

Sequence in context: A318762 A262598 A191854 * A277640 A165401 A319916

Adjacent sequences:  A129643 A129644 A129645 * A129647 A129648 A129649

KEYWORD

nonn

AUTHOR

Leroy Quet, Apr 25 2007

EXTENSIONS

More terms from Sean A. Irvine, Nov 25 2010; corrected (sorted to numerical order) by Franklin T. Adams-Watters, Aug 24 2013

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 November 15 06:11 EST 2019. Contains 329144 sequences. (Running on oeis4.)