Square_pyramidal_number.svg
Size of this PNG preview of this SVG file:
800 × 389 pixels
.
Other resolutions:
320 × 156 pixels
|
640 × 311 pixels
|
1,024 × 498 pixels
|
1,280 × 622 pixels
|
2,560 × 1,245 pixels
|
981 × 477 pixels
.
Summary
| Description | 1+4+9+16=30, a square pyramidal number . |
| Date | 10 February 2007 (original upload date) |
| Source | Transferred from en.wikipedia to Commons. |
| Author | David Eppstein at English Wikipedia |
Licensing
|
This work has been released into the
public domain
by its author,
David Eppstein
at
English Wikipedia
. This applies worldwide.
In some countries this may not be legally possible; if so: David Eppstein grants anyone the right to use this work for any purpose , without any conditions, unless such conditions are required by law. |
Original upload log
The original description page was
here
. All following user names refer to en.wikipedia.
- 2007-02-10 23:28 David Eppstein 981×477×0 (8841 bytes) Replace with fixed gradients
- 2007-02-10 22:59 David Eppstein 981×477×0 (34905 bytes) 1+4+9+16=30, a [[square pyramidal number]].