login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A048426 Numbers k such that k^2 is composed of three 1-digit-overlapping subsquares. 1
696, 1275, 1771, 2538, 3486, 6014, 6021, 7969, 16035, 16095, 16096, 19175, 29004, 40066, 47475, 67989, 69007, 76005, 85396, 90098, 110425, 128125, 150112, 160038, 160125, 160205, 161177, 170775, 180204, 180275, 220095, 259325, 350042, 480675 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Subsquares with leading and/or trailing zeros are not included.

Subsquares are at least 2 digits long.

LINKS

Table of n, a(n) for n=0..33.

EXAMPLE

6014 is a term:

6014^2 = 36168196

  19^2 = 361

  41^2 =   1681

  14^2 =      196

           ^  ^

           |  |

         1-digit overlaps

CROSSREFS

Cf. A000290, A048425.

Sequence in context: A251367 A221418 A157435 * A209731 A222782 A282048

Adjacent sequences:  A048423 A048424 A048425 * A048427 A048428 A048429

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Apr 15 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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 30 17:31 EST 2020. Contains 338807 sequences. (Running on oeis4.)