This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A143238 a(n) = A000203(n) * A024916(n). 1
 1, 12, 32, 105, 126, 396, 328, 840, 897, 1566, 1188, 3556, 1974, 3960 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS FORMULA a(n) = A000203(n) * A024916(n) = row sums of triangle A143237. EXAMPLE a(4) = 105 = A000203(4) * A024916(4) = 7 * 15. a(4) = 105 = sum of row 4 terms of triangle A143237: (7, + 21, + 28 + 49). CROSSREFS Cf. A000203, A024916, A143237. Sequence in context: A183682 A194644 A068381 * A102091 A045669 A045660 Adjacent sequences:  A143235 A143236 A143237 * A143239 A143240 A143241 KEYWORD nonn AUTHOR Gary W. Adamson, Aug 01 2008 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified June 19 19:50 EDT 2013. Contains 226416 sequences.