A046580 Numerators of the elements to the right of the central elements of the 1/4-Pascal triangle (by row).

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

Offset

1,3

Links

Table of n, a(n) for n=1..61.

Example

1/1; -->
1/1  1/1; --> 1
1/1  1/4  1/1; --> 1
1/1  5/4  5/4  1/1; --> 5 1
1/1  9/4  5/2  9/4  1/1; --> 9 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: A147423 A147085 A348980 * A050358 A147319 A147326

Adjacent sequences: A046577 A046578 A046579 * A046581 A046582 A046583

Keyword

tabf,nonn,frac,less

Author

Mohammad K. Azarian

Extensions

More terms from Don Gray (s1171480(AT)cedarville.edu)

Data corrected by Sean A. Irvine, Apr 13 2021

Status

approved