login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A177739 In those partitions of n with every part >=3, the total number of parts (counted with multiplicity). 1
0, 0, 0, 1, 1, 1, 3, 3, 5, 8, 10, 13, 22, 25, 34, 49, 62, 77, 108, 132, 172, 221, 276, 345, 448, 544, 680, 851, 1050, 1280, 1596, 1931, 2366, 2884, 3496, 4220, 5135, 6144, 7403, 8890, 10644, 12679, 15177, 18007, 21419, 25399, 30066, 35488, 41971, 49344, 58088 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,7
COMMENTS
Also the number of components (counted with multiplicity) of the 2-regular simple graphs of order n.
LINKS
MATHEMATICA
Table[Length[Flatten[Select[IntegerPartitions[n], Min[#]>2&]]], {n, 0, 50}] (* Harvey P. Dale, May 12 2020 *)
PROG
(Magma) [ #&cat RestrictedPartitions(n, {3..n}):n in [0..50]];
CROSSREFS
The number of such partitions is given by A008483.
Lengths of the rows of triangle A176210.
Row sums of triangle A177740.
Sequence in context: A333150 A342343 A116645 * A323581 A327731 A193744
KEYWORD
easy,nonn
AUTHOR
Jason Kimberley, May 13 2010
STATUS
approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)