A050628 a(1) = 1; a(n+1) is next smallest nontrivial square containing a(n) as a substring.

1, 16, 169, 56169, 36156169, 13361561690409, 42133615616904090751725289

Offset

1,2

Links

Table of n, a(n) for n=1..7.

Formula

a(n) = A050629(n)^2.

Crossrefs

Cf. A050629, A048557, A050630, A050632, A050634.

Sequence in context: A238976 A242078 A264092 * A048557 A174645 A021424

Adjacent sequences: A050625 A050626 A050627 * A050629 A050630 A050631

Keyword

nonn,base,more

Author

Patrick De Geest, Jul 15 1999

Extensions

a(7) from Max Alekseyev, Feb 15 2012

Status

approved