id:A064985 - OEIS Search Results

Search: id:A064985

Displaying 1-1 of 1 results found.

page 1

Number of partitions of n into factorial parts ( 0! allowed ).

+0
3

1, 2, 4, 6, 9, 12, 17, 22, 29, 36, 45, 54, 66, 78, 93, 108, 126, 144, 166, 188, 214, 240, 270, 300, 336, 372, 414, 456, 504, 552, 608, 664, 728, 792, 864, 936, 1018, 1100, 1192, 1284, 1386, 1488, 1602, 1716, 1842, 1968, 2106, 2244, 2397, 2550, 2718, 2886 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`G.f.: 1/(Product_{i=1..infinity} (1-x^(i!)))/(1-x).`
	EXAMPLE	`a(3)=6 because we can write 3 = 2!+1! = 2!+0! = 1!+1!+1! = 0!+0!+0! = 1!+1!+0! = 1!+0!+0!.`
	CROSSREFS	`Cf. A064986.` `Adjacent sequences: A064982 A064983 A064984 this_sequence A064986 A064987 A064988` `Sequence in context: A090178 A080548 A080556 this_sequence A090631 A001365 A102379`
	KEYWORD	`easy,nonn`
	AUTHOR	`Naohiro Nomoto (n_nomoto(AT)yabumi.com), Oct 30 2001`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu) and Don Reble (djr(AT)nk.ca), Nov 02 2001`

page 1

Search completed in 0.002 seconds

Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

AT&T Labs Research