This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A046564 First denominator and then numerator of each element of the 1/4-Pascal triangle (by row). 0
 1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 4, 5, 4, 5, 1, 1, 1, 1, 4, 9, 2, 5, 4, 9, 1, 1, 1, 1, 4, 13, 4, 19, 4, 19, 4, 13, 1, 1, 1, 1, 4, 17, 1, 8, 2, 19, 1, 8, 4, 17, 1, 1, 1, 1, 4, 21, 4, 49, 2, 35, 2, 35, 4, 49, 4, 21, 1, 1, 1, 1, 4, 25, 2, 35, 4, 119, 1, 35, 4, 119, 2, 35, 4, 25, 1, 1, 1, 1, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,9 LINKS EXAMPLE 1/1; --> 1 1 1/1 1/1; --> 1 1 1 1 1/1 1/4 1/1; --> 1 1 4 1 1 1 1/1 5/4 5/4 1/1; --> ... 1/1 9/4 5/2 9/4 1/1; 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ... CROSSREFS Cf. A046563. Sequence in context: A178764 A070010 A293768 * A046592 A010326 A196879 Adjacent sequences:  A046561 A046562 A046563 * A046565 A046566 A046567 KEYWORD tabf,nonn,frac,less AUTHOR 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 October 18 02:23 EDT 2019. Contains 328135 sequences. (Running on oeis4.)