A048425 Squares composed of three overlapping subsquares, which overlap by one digit.

484416, 1625625, 3136441, 6441444, 12152196, 36168196, 36252441, 63504961, 257121225, 259049025, 259081216, 367680625, 841232016, 1605284356, 2253875625, 4622504121, 4761966049, 5776760025, 7292476816, 8117649604

Offset

1,1

Comments

Subsquares have at least two digits and have no leading nor trailing zeros.

Links

Table of n, a(n) for n=1..20.

Example

3136441 = 1771^2 and has subsquares 3136,64,441.

Crossrefs

Cf. A048426.

Sequence in context: A172674 A184495 A237943 * A205036 A205284 A190387

Adjacent sequences: A048422 A048423 A048424 * A048426 A048427 A048428

Keyword

nonn,base

Author

Patrick De Geest, Apr 15 1999

Extensions

Edited by Don Reble, Nov 20 2006

Status

approved