login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A134311 Row sums of triangle A134310. 1
1, 2, 7, 20, 51, 122, 281, 632, 1399, 3062, 6645, 14324, 30707, 65522 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

FORMULA

Binomial transform of [1, 1, 4, 4, 6, 6, 8, 8, 10, 10, 12, 12,...].

EXAMPLE

a(4) = 20 = sum of row 4 terms of triangle A134310: (4 + 4 + 5 + 7).

a(4) = 20 = (1, 3, 3, 1) dot (1, 1, 4, 4) = (1 + 3 + 12 + 4).

CROSSREFS

Cf. A134310.

Sequence in context: A136907 A090145 A123203 * A066373 A096005 A050532

Adjacent sequences:  A134308 A134309 A134310 * A134312 A134313 A134314

KEYWORD

nonn

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 21 2007

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 February 16 17:11 EST 2012. Contains 205938 sequences.