This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A046200 Odd numbers in the triangle of denominators in Leibniz's Harmonic Triangle. 0
 1, 3, 3, 5, 5, 7, 105, 105, 7, 9, 9, 11, 495, 495, 11, 13, 6435, 6435, 13, 15, 1365, 15015, 45045, 45045, 15015, 1365, 15, 17, 17, 19, 2907, 2907, 19, 21, 101745, 101745, 21, 23, 5313, 168245, 1716099, 1716099, 168245, 5313, 23, 25, 18386775, 18386775, 25 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 REFERENCES L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 83, Problem 25. LINKS EXAMPLE 1/1; --> 1 1/2, 1/2; --> 1/3, 1/6, 1/3; --> 3 3 1/4, 1/12, 1/12, 1/4; --> ... 1/5, 1/20, 1/30, 1/20, 1/5; ... CROSSREFS Cf. A003506. Sequence in context: A142712 A247577 A282207 * A063281 A117772 A026924 Adjacent sequences:  A046197 A046198 A046199 * A046201 A046202 A046203 KEYWORD tabf,nonn,easy,less AUTHOR EXTENSIONS More terms from James A. Sellers, Dec 13 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified November 13 01:32 EST 2018. Contains 317118 sequences. (Running on oeis4.)