The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A046621 First denominator and then numerator of each element to the right of the central elements of the 1/5-Pascal triangle (by row), excluding 5's. 0
 1, 1, 1, 1, 6, 1, 1, 11, 1, 1, 23, 16, 1, 1, 39, 21, 1, 1, 1, 17, 1, 12, 26, 1, 1, 1, 29, 86, 31, 1, 1, 1, 63, 231, 117, 36, 1, 1, 546, 348, 153, 41, 1, 1, 1176, 894, 501, 194, 46, 1, 1, 1, 414, 1, 279, 1, 139, 1, 48, 51, 1, 1, 4422, 1, 693, 1, 418, 1, 187, 291, 56, 1, 1, 7887, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 LINKS 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: A176151 A204001 A144395 * A046617 A131063 A081579 Adjacent sequences:  A046618 A046619 A046620 * A046622 A046623 A046624 KEYWORD tabf,nonn AUTHOR EXTENSIONS More terms from James A. Sellers, Dec 16 1999 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified July 31 20:14 EDT 2021. Contains 346377 sequences. (Running on oeis4.)