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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A024994 Number of periodic partitions of n: each part occurs more than once and the same number of times. 4
1, 1, 1, 2, 1, 4, 1, 4, 3, 5, 1, 10, 1, 7, 6, 10, 1, 16, 1, 17, 8, 14, 1, 31, 4, 20, 11, 31, 1, 48, 1, 42, 15, 40, 9, 79, 1, 56, 21, 87, 1, 111, 1, 105, 41, 106, 1, 185, 6, 157, 41, 187, 1, 254, 16, 259, 57, 258, 1, 425, 1, 342, 92, 432, 22, 557, 1, 554, 107, 627, 1, 875, 1, 762, 175, 922, 18, 1173 (list; graph; refs; listen; history; internal format)
OFFSET

1,4

FORMULA

a(n) = Sum(q(k)), where k divides n, k < n, where q(n) = A000009(n), distinct partitions - Alford Arnold (Alford1940(AT)aol.com)

EXAMPLE

E.g. 6 = 1+1+1+1+1+1 = 2+2+2 = 3+3 = 2+1+2+1, so a(6)=4.

CROSSREFS

Cf. A000009, A047966.

Sequence in context: A107457 A112350 A063717 * A051953 A079277 A066452

Adjacent sequences:  A024991 A024992 A024993 * A024995 A024996 A024997

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 12:25 EST 2012. Contains 205786 sequences.