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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A227561 Number of partitions of n into distinct parts with boundary size 4. 3
1, 1, 3, 4, 6, 9, 14, 16, 22, 28, 35, 42, 53, 62, 73, 86, 98, 114, 134, 148, 168, 192, 212, 235, 264, 289, 320, 355, 385, 419, 461, 495, 538, 586, 626, 674, 734, 779, 835, 898, 951, 1013, 1087, 1147, 1219, 1300, 1367, 1447, 1542, 1614, 1701, 1801, 1887, 1982 (list; graph; refs; listen; history; text; internal format)
OFFSET

12,3

COMMENTS

The boundary size is the number of parts having fewer than two neighbors.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 12..1000

CROSSREFS

Column k=4 of A227345, A227551.

Sequence in context: A090867 A152950 A005626 * A030712 A025000 A147790

Adjacent sequences:  A227558 A227559 A227560 * A227562 A227563 A227564

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Jul 16 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 March 18 16:00 EDT 2019. Contains 321292 sequences. (Running on oeis4.)