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A072773
The upper triangular region of A072764.
3
1, 3, 6, 7, 16, 42, 8, 19, 51, 52, 17, 44, 126, 127, 385, 18, 47, 135, 136, 413, 414, 20, 53, 154, 155, 475, 476, 477, 21, 56, 163, 164, 503, 504, 505, 506, 22, 60, 177, 178, 551, 552, 553, 554, 555, 45, 128, 390, 391, 1243, 1244, 1245, 1246, 1247, 4089, 46
OFFSET
0,2
LINKS
A. Karttunen, Gatomorphisms (with the complete Scheme source)
PROG
(Scheme function showing the general idea:) (define (A072773 n) (CatalanRankGlobal (parenthesization->binexp (cons (binexp->parenthesization (A014486 (A003056 n))) (binexp->parenthesization (A014486 (A002262 n)))))))
CROSSREFS
Cf. also A014486, A003056, A002262.
Sequence in context: A227723 A192124 A334210 * A130049 A333553 A341183
KEYWORD
nonn,tabl
AUTHOR
Antti Karttunen, Jun 12 2002
STATUS
approved