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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A182858 Irregular table: Row n is the list of positive exponents in the canonical prime factorization of A182857(n), sorted in descending order, or 0 if there are no such exponents. 5
0, 1, 2, 1, 1, 2, 1, 2, 1, 1, 3, 2, 1, 1, 4, 3, 2, 2, 1, 1, 1, 7, 6, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 14, 13, 12, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 42, 41, 40, 39, 38, 37, 36, 35, 35, 34, 34, 33, 33, 32, 32, 31, 31 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Length of row 0 = length of row 1 = 1; for n > 1, length of row n = A011784(n-1).

For n > 2, row n = row (n-2) of A012257, reversed.

LINKS

Table of n, a(n) for n=0..93.

EXAMPLE

Table begins:

0,

1,

2,

1,1,

2,1,

2,1,1,

3,2,1,1,...

CROSSREFS

Cf. A181819, A182850.

Sequence in context: A115623 A279044 A134265 * A175077 A001030 A246140

Adjacent sequences:  A182855 A182856 A182857 * A182859 A182860 A182861

KEYWORD

nonn,tabf

AUTHOR

Matthew Vandermast, Jan 05 2011

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 19 16:06 EST 2019. Contains 329320 sequences. (Running on oeis4.)