|
Search: id:A121659
|
|
|
| A121659 |
|
Number of partitions of n into parts with at most one part not greater than 2. |
|
+0
3
|
|
| 1, 1, 1, 2, 3, 4, 5, 7, 9, 12, 15, 20, 25, 32, 40, 51, 63, 79, 97, 121, 148, 182, 221, 271, 328, 398, 479, 579, 694, 834, 995, 1190, 1415, 1684, 1995, 2366, 2793, 3298, 3881, 4569, 5360, 6288, 7355, 8603, 10037, 11705, 13619, 15842, 18388, 21333, 24703
(list; graph; listen)
|
|
|
OFFSET
|
1,4
|
|
|
COMMENT
|
a(n) = A121081(n) - A008483(n-3) for n>2.
|
|
EXAMPLE
|
a(8) = #{8,7+1,6+2,5+3,4+4,4+3+1,3+3+2} = 7;
a(9) = #{9,8+1,7+2,6+3,5+4,5+3+1,4+4+1,4+3+2,3+3+3} = 9.
|
|
CROSSREFS
|
Cf. A027336.
Sequence in context: A122129 A003413 A100853 this_sequence A096814 A039861 A039877
Adjacent sequences: A121656 A121657 A121658 this_sequence A121660 A121661 A121662
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 14 2006
|
|
|
Search completed in 0.002 seconds
|
