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A046600
First numerator and then denominator of each element of the 1/4-Pascal triangle (by row), excluding 1's and 4's.
0
5, 5, 9, 5, 2, 9, 13, 19, 19, 13, 17, 8, 19, 2, 8, 17, 21, 49, 35, 2, 35, 2, 49, 21, 25, 35, 2, 119, 35, 119, 35, 2, 25, 29, 95, 189, 259, 259, 189, 95, 29, 33, 31, 71, 112, 259, 2, 112, 71, 31, 33, 37, 157, 102, 183, 483, 2, 483, 2, 183, 102, 157, 37, 41, 97, 2, 565, 285
OFFSET
1,1
EXAMPLE
1/1; 1/1 1/1; 1/1 1/4 1/1; 1/1 5/4 5/4 1/1; 1/1 9/4 5/2 9/4 1/1; 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...
CROSSREFS
Cf. A046563.
Sequence in context: A046567 A199155 A243447 * A344327 A030798 A331502
KEYWORD
tabf,nonn
EXTENSIONS
More terms from James A. Sellers, Dec 14 1999
STATUS
approved