A046628 Distinct odd numbers in writing first numerator and then denominator of each element to the right of the central elements of the 1/5-Pascal triangle (by row).

1, 5, 11, 23, 39, 21, 17, 29, 31, 63, 231, 117, 153, 41, 501, 279, 139, 51, 693, 187, 291, 7887, 1111, 605, 347, 61, 16731, 4251, 1573, 30173, 12831, 1981, 71, 12727, 10439, 34853, 3731, 1561, 491, 109, 621, 81, 3621, 16881, 4323, 91, 66861, 5111, 879

Offset

1,2

Links

Table of n, a(n) for n=1..49.

Example

1/1; 1/1 1/1; 1/1 1/5 1/1; 1/1 6/5 6/5 1/1; 1/1 11/5 12/5 11/5 1/1; 1/1 16/5 23/5 23/5 16/5 1/1; 1/1 21/5 39/5 46/5 39/5 21/5 1/1; 1/1 26/5 12/1 17/1 17/1 12/1 26/5 1/1; ...

Crossrefs

Cf. A046601.

Sequence in context: A281875 A143125 A147081 * A262284 A118439 A343711

Adjacent sequences: A046625 A046626 A046627 * A046629 A046630 A046631

Keyword

tabf,nonn

Author

Mohammad K. Azarian

Extensions

More terms from James A. Sellers, Dec 16 1999

Status

approved