A050633 a(1)=3; for n>1, a(n)^2 is next smallest nontrivial square containing a(n-1)^2 as a substring.

3, 7, 43, 136, 10158, 85927342, 738024797793593

Offset: 1

Author

Patrick De Geest, Jul 15 1999

Keywords

• nonn
• base
• more

Crossrefs

Starting with a(2)=7, the sequence is identical to A050631.

Cf. A050632, A048562, A050639.

Formula

a(n) = sqrt(A050632(n)).

Extensions

a(7) from Max Alekseyev, Feb 15 2012