A046536 First numerator and then denominator of each element of the 1/3-Pascal triangle (by row), excluding 1's.

3, 4, 3, 4, 3, 7, 3, 8, 3, 7, 3, 10, 3, 5, 5, 10, 3, 13, 3, 25, 3, 10, 25, 3, 13, 3, 16, 3, 38, 3, 55, 3, 55, 3, 38, 3, 16, 3, 19, 3, 18, 31, 110, 3, 31, 18, 19, 3, 22, 3, 73, 3, 49, 203, 3, 203, 3, 49, 73, 3, 22, 3, 25, 3, 95, 3, 220, 3, 350, 3, 406, 3, 350, 3, 220, 3, 95, 3

Offset

1,1

Links

Table of n, a(n) for n=1..78.

Example

1/1; -->
1/1 1/1; -->
1/1 1/3 1/1; --> 3
1/1 4/3 4/3 1/1; --> 4 3 4 3
1/1 7/3 8/3 7/3 1/1; -->
1/1 10/3 5/1 5/1 10/3 1/1;
1/1 13/3 25/3 10/1 25/3 13/3 1/1;
1/1 16/3 38/3 55/3 55/3 38/3 16/3 1/1; ...

Crossrefs

Cf. A046534.

Sequence in context: A095925 A242744 A066783 * A052384 A276867 A100867

Adjacent sequences: A046533 A046534 A046535 * A046537 A046538 A046539

Keyword

tabf,nonn,easy,frac,less

Author

Mohammad K. Azarian

Extensions

Corrected and extended by Larry Reeves (larryr(AT)acm.org), Apr 06 2000

Data further corrected by Sean A. Irvine, Apr 13 2021

Status

approved