A115536 Numbers k such that the square of k is the concatenation of two numbers m and 4*m.

160378, 169812, 179246, 188680, 198114, 207548, 216982, 226416, 235850, 245284, 254718, 264152, 273586, 283020, 292454, 301888, 311322, 320756, 330190, 339624, 349058, 358492, 367926, 377360, 386794, 396228, 405662

Offset

1,1

Links

Table of n, a(n) for n=1..27.

Tanya Khovanova, Non Recursions

Example

160378^2 = 25721_102884.

Crossrefs

Cf. A102567, A106497, A115527 - A115556.

Sequence in context: A097626 A212081 A251827 * A250056 A214805 A257193

Adjacent sequences: A115533 A115534 A115535 * A115537 A115538 A115539

Keyword

nonn,base

Author

Giovanni Resta, Jan 25 2006

Status

approved