A048558 a(n+1)^2 is next smallest nontrivial square beginning with a(n)^2, initial square is 1.

1, 4, 13, 412, 130286, 41200050724, 4120005072400000000001, 41200050724000000000010000000000000000000001, 4120005072400000000001000000000000000000000100000000000000000000000000000000000000000001

Offset

0,2

Comments

Next terms are 176 and 351 digits long.

Links

Table of n, a(n) for n=0..8.

Crossrefs

Cf. A048557.

Sequence in context: A344513 A219707 A219822 * A219571 A304545 A316372

Adjacent sequences: A048555 A048556 A048557 * A048559 A048560 A048561

Keyword

nonn,base

Author

Patrick De Geest, May 15 1999

Status

approved