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A082861
Lower triangular region of A082860.
3
0, 1, 1, 2, 2, 2, 3, 3, 6, 3, 4, 4, 4, 14, 4, 5, 5, 5, 15, 11, 5, 6, 6, 6, 6, 14, 15, 6, 7, 7, 16, 7, 42, 43, 16, 7, 8, 8, 19, 8, 51, 52, 19, 20, 8, 9, 9, 9, 37, 9, 28, 37, 121, 149, 9, 10, 10, 10, 38, 10, 29, 38, 122, 150, 25, 10, 11, 11, 11, 39, 11, 11, 39, 123, 151, 28, 29, 11, 12, 12, 12, 40, 30, 12, 40, 124, 152, 84, 85, 30, 12, 13, 13, 13, 41, 33, 13, 41, 125, 153
OFFSET
0,4
LINKS
Antti Karttunen, Alternative Catalan Orderings (with the complete Scheme source)
PROG
(Scheme-functions showing the essential idea. For the full source, follow the "Alternative Catalan Orderings" link.)
(define (A082861 n) (A080300 (parenthesization->binexp (LCSB (binexp->parenthesization (A014486 (A003056 n))) (binexp->parenthesization (A014486 (A002262 n)))))))
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Antti Karttunen, May 06 2003
STATUS
approved