A046588 Distinct numbers in writing first numerator and then denominator of each element to the right of the central elements of the 1/4-Pascal triangle (by row).

1, 5, 4, 9, 19, 13, 8, 17, 35, 2, 49, 21, 119, 25, 259, 189, 95, 29, 112, 71, 31, 33, 483, 183, 102, 157, 37, 849, 285, 565, 97, 41, 1815, 1419, 1705, 759, 235, 45, 1617, 4543, 616, 497, 70, 3432, 11011, 7007, 1729, 637, 329, 53, 24739, 9009, 10465, 1183, 1603

Offset

1,2

Links

Table of n, a(n) for n=1..55.

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: A068397 A236405 A022344 * A086654 A286461 A152064

Adjacent sequences: A046585 A046586 A046587 * A046589 A046590 A046591

Keyword

tabf,nonn

Author

Mohammad K. Azarian

Extensions

More terms from James A. Sellers, Dec 14 1999

Status

approved