A046570 Distinct numbers in writing first numerator and then denominator of each element of the 1/4-Pascal triangle (by row).

1, 4, 5, 9, 2, 13, 19, 17, 8, 21, 49, 35, 25, 119, 29, 95, 189, 259, 33, 31, 71, 112, 37, 157, 102, 183, 483, 41, 97, 565, 285, 849, 45, 235, 759, 1705, 1419, 1815, 70, 497, 616, 4543, 1617, 53, 329, 637, 1729, 7007, 11011, 3432, 57, 191, 1603, 1183, 10465

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: A171091 A200588 A197821 * A274412 A168429 A195787

Adjacent sequences: A046567 A046568 A046569 * A046571 A046572 A046573

Keyword

tabf,nonn

Author

Mohammad K. Azarian

Extensions

More terms from James A. Sellers, Dec 14 1999

Status

approved