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A079226
Number of Catalan objects fixed by five-fold application of the Catalan bijections A057511/A057512 (deep rotation of general parenthesizations/plane trees).
5
1, 1, 2, 3, 5, 6, 15, 36, 108, 301, 814, 2080, 5223, 12919, 32557, 83943, 222591, 600252, 1632814, 4440240, 12043224, 32572225, 88081208, 238722759, 649725756, 1776546687, 4877740703, 13432630929, 37063472432, 102389547753
OFFSET
0,3
FORMULA
a(n) = A079216(n, 5)
MAPLE
A079226 := n -> A079216bi(n, 5);
CROSSREFS
The fifth row of A079216. The leftmost edge of the triangle A079221 and also its row sums shifted by one. Occurs in A073202 as row 9259542121261050623. Cf. A057546, A079223-A079227.
Sequence in context: A249752 A222313 A355483 * A055686 A126250 A293027
KEYWORD
nonn
AUTHOR
Antti Karttunen Jan 03 2002
STATUS
approved