id:A079222 - OEIS Search Results

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Triangle T(n,d) (listed row-wise: T(1,1)=1, T(2,1)=1, T(2,2)=1, T(3,1)=2, T(3,2)=2, T(3,3)=1, ...) giving the number of n-edge general plane trees with root degree d that are fixed by the six-fold application of gatomorphisms A057511/A057512 (Deep rotation of general parenthesizations/plane trees).

+0
8

1, 1, 1, 2, 2, 1, 5, 5, 3, 1, 14, 14, 9, 0, 1, 38, 42, 28, 2, 0, 1, 111, 124, 90, 0, 0, 6, 1, 332, 379, 285, 5, 0, 27, 0, 1, 1029, 1178, 914, 0, 0, 110, 0, 0, 1, 3232, 3742, 2955, 14, 1, 429, 0, 0, 0, 1, 10374, 12024, 9666, 0, 0, 1614, 0, 0, 0, 0, 1, 33679, 39200, 31853, 42, 0 (list; table; graph; listen)

	OFFSET	`0,4`
	COMMENT	`Note: the counts given here are inclusive, i.e. T(n,d) includes also the counts A079218(n,d) and A079219(n,d).`
	MAPLE	`[seq(A079222(n), n=0..119)]; A079222 := n -> PFixedByA057511(A003056(n)+1, 6, A002262(n)+1);`
	CROSSREFS	`The row sums equal to the left edge shifted left once = A079227 = sixth row of A079216 (the latter gives the Maple procedure PFixedByA057511). Cf. also A079217-A079221 and A003056 & A002262.` `Adjacent sequences: A079219 A079220 A079221 this_sequence A079223 A079224 A079225` `Sequence in context: A123971 A114292 A141751 this_sequence A033184 A110488 A134379`
	KEYWORD	`nonn,tabl`
	AUTHOR	`Antti Karttunen (my_firstname.my_surname(AT)iki.fi) Jan 03 2002`

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Last modified October 5 16:50 EDT 2008. Contains 144613 sequences.

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