id:A000951 - OEIS Search Results

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Number of forests with n nodes and height at most 4.
(Formerly M3026 N1226)

+0
12

1, 3, 16, 125, 1296, 16087, 229384, 3687609, 66025360, 1303751051, 28151798544, 659841763957, 16681231615816, 452357366282655, 13095632549137576, 403040561722348913, 13138626717852194976, 452179922268565180819 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`J. Riordan, Forests of labeled trees, J. Combin. Theory, 5 (1968), 90-103.`
	FORMULA	`E.g.f.: exp(xexp(xexp(xexp(xexp(x))))).`
	CROSSREFS	`Cf. A000248, A000949, A000950, A052512-A052514.` `Sequence in context: A005119 A090135 A000950 this_sequence A000272 A088358 A082161` `Adjacent sequences: A000948 A000949 A000950 this_sequence A000952 A000953 A000954`
	KEYWORD	`nonn`
	AUTHOR	`njas`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Apr 07 2001`

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Last modified August 29 16:58 EDT 2008. Contains 143238 sequences.

AT&T Labs Research