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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A084935 Diagonal sums of the array T in A084934. 1
0, 1, 2, 5, 7, 11, 15, 21, 25, 32, 39, 48, 54, 65, 73, 86, 94, 109, 119, 134, 145, 164, 176, 194, 208, 228, 243, 265, 282, 305, 321, 348, 366, 392, 411, 440, 460, 491, 513, 545, 566, 599, 624, 660, 683, 721, 747, 785, 812, 852, 881, 921, 950, 995, 1025, 1070, 1101 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..57.

EXAMPLE

The northwest corner of T includes

0 1 1 2

0 1 2

0 1

0,

from which the first four diagonals sums are 0,1,2,5.

CROSSREFS

Cf. A084934.

Sequence in context: A184857 A032616 A006066 * A239072 A217302 A062409

Adjacent sequences:  A084932 A084933 A084934 * A084936 A084937 A084938

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jun 12 2003

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.

License Agreements, Terms of Use, Privacy Policy .

Last modified February 20 15:54 EST 2018. Contains 299380 sequences. (Running on oeis4.)