A046214 First denominator and then numerator of 1/2-Pascal triangle (by row).

1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 3, 2, 3, 1, 1, 1, 1, 2, 5, 1, 3, 2, 5, 1, 1, 1, 1, 2, 7, 2, 11, 2, 11, 2, 7, 1, 1, 1, 1, 2, 9, 1, 9, 1, 11, 1, 9, 2, 9, 1, 1, 1, 1, 2, 11, 2, 27, 1, 20, 1, 20, 2, 27, 2, 11, 1, 1, 1, 1, 2, 13, 1, 19, 2, 67, 1, 40, 2, 67, 1, 19, 2, 13, 1, 1, 1, 1, 2, 15, 2

Offset

1,9

Links

Table of n, a(n) for n=1..95.

Example

1/1; --> 1 1
1/1 1/1; --> 1 1 1 1
1/1 1/2 1/1; --> 1 1 2 1 1 1
1/1 3/2 3/2 1/1; --> ...
1/1 5/2 3/1 5/2 1/1;
1/1 7/2 11/2 11/2 7/2 1/1;
1/1 9/2 9/1 11/1 9/1 9/2 1/1;
1/1 11/2 27/2 20/1 20/1 27/2 11/2 1/1;...

Crossrefs

Cf. A046213.

Sequence in context: A062093 A177457 A357139 * A232088 A115413 A292435

Adjacent sequences: A046211 A046212 A046213 * A046215 A046216 A046217

Keyword

tabf,nonn,frac

Author

Mohammad K. Azarian

Status

approved