id:A079225 - OEIS Search Results

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Number of Catalan objects fixed by four-fold application of the gatomorphisms A057511/A057512 (Deep rotation of general parenthesizations/plane trees).

+0
4

1, 1, 2, 5, 11, 30, 82, 233, 680, 2033, 6164, 18923, 58768, 184045, 581105, 1846906, 5905364, 18980465, 61292929, 198758704, 646974285, 2113163707, 6923642271, 22749608810, 74946337830, 247499313730, 819154110660, 2716779932308 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n) = A079216(n, 4)`
	MAPLE	`A079225 := n -> A079216bi(n, 4);`
	CROSSREFS	`The fourth row of A079216. The leftmost edge of the triangle A079220 and also its row sums shifted by one. Occurs in A073202 as row 2290625151. Cf. A057546, A079223-A079227.` `Sequence in context: A121134 A144959 A131347 this_sequence A139466 A139467 A124481` `Adjacent sequences: A079222 A079223 A079224 this_sequence A079226 A079227 A079228`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (my_firstname.my_surname(AT)iki.fi) Jan 03 2002`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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