id:A144121 - OEIS Search Results

Search: id:A144121

Displaying 1-1 of 1 results found.

page 1

Number of nonprime parts in the outer shell of the partitions of n.

+0
4

1, 1, 2, 4, 5, 9, 12, 20, 26, 39, 51, 76, 96, 136, 175, 241, 304, 412, 517, 686, 859, 1117, 1392, 1794, 2217, 2818, 3478, 4373, 5363, 6694, 8168, 10113, 12295, 15105, 18289, 22347, 26932, 32712, 39302, 47481, 56825, 68347 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`First differences of A144119.`
	FORMULA	`a(n) = A138137(n)-A144120(n) = A144119(n)-A144119(n-1).`
	CROSSREFS	`Cf. A018252, A135010, A138121, A138137, A144117, A144118, A144119, A144120.` `Sequence in context: A082592 A039898 A083690 this_sequence A060312 A068372 A068370` `Adjacent sequences: A144118 A144119 A144120 this_sequence A144122 A144123 A144124`
	KEYWORD	`easy,nonn`
	AUTHOR	`Omar E. Pol (info(AT)polprimos.com), Sep 11 2008`

page 1

Search completed in 0.002 seconds

Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

AT&T Labs Research