A046571 Odd numbers in the numerators of the 1/4-Pascal triangle (by row).

1, 1, 1, 1, 1, 1, 1, 5, 5, 1, 1, 9, 5, 9, 1, 1, 13, 19, 19, 13, 1, 1, 17, 19, 17, 1, 1, 21, 49, 35, 35, 49, 21, 1, 1, 25, 35, 119, 35, 119, 35, 25, 1, 1, 29, 95, 189, 259, 259, 189, 95, 29, 1, 1, 33, 31, 71, 259, 71, 31, 33, 1

Offset

1,8

Links

Table of n, a(n) for n=1..62.

Example

1/1; --> 1
1/1 1/1; --> 1 1
1/1 1/4 1/1; --> 1 1 1
1/1 5/4 5/4 1/1; --> 1 5 5 1
1/1 9/4 5/2 9/4 1/1; --> 1 9 5 9 1
1/1 13/4 19/4 19/4 13/4 1/1; --> 1 13 19 19 13 1
1/1 17/4 8/1 19/2 8/1 17/4 1/1; --> 1 17 19 17 1
1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

Sequence in context: A172355 A178916 A046568 * A172349 A144403 A188587

Adjacent sequences: A046568 A046569 A046570 * A046572 A046573 A046574

Keyword

tabf,nonn,frac,less

Author

Mohammad K. Azarian

Status

approved