A046219 Denominators of elements of 1/2-Pascal triangle (by row).

1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 1, 2, 1, 1, 2, 2, 2, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1

Offset

1,5

Links

Table of n, a(n) for n=1..87.

Example

1/1; --> 1
1/1  1/1;  --> 1 1
1/1  1/2  1/1;  --> 1 2 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: A191322 A264840 A308188 * A088978 A276948 A160245

Adjacent sequences: A046216 A046217 A046218 * A046220 A046221 A046222

Keyword

tabl,nonn,frac

Author

Mohammad K. Azarian

Extensions

More terms from Sean A. Irvine, Apr 07 2021

Status

approved