A046539 Numerators of the 1/3-Pascal triangle (by row).

1, 1, 1, 1, 1, 1, 1, 4, 4, 1, 1, 7, 8, 7, 1, 1, 10, 5, 5, 10, 1, 1, 13, 25, 10, 25, 13, 1, 1, 16, 38, 55, 55, 38, 16, 1, 1, 19, 18, 31, 110, 31, 18, 19, 1, 1, 22, 73, 49, 203, 203, 49, 73, 22, 1, 1, 25, 95, 220, 350, 406, 350, 220, 95, 25, 1

Offset

1,8

Links

Table of n, a(n) for n=1..66.

Example

1/1; --> 1
1/1  1/1; --> 1 1
1/1  1/3  1/1; --> 1 1 1
1/1  4/3  4/3  1/1; --> 1 4 4 1
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: A319703 A166361 A213669 * A198929 A172347 A108428

Adjacent sequences: A046536 A046537 A046538 * A046540 A046541 A046542

Keyword

tabl,nonn,frac,less

Author

Mohammad K. Azarian

Extensions

Data corrected by Sean A. Irvine, Apr 13 2021

Status

approved