A048562 a(n+1)^2 is next smallest nontrivial square beginning with a(n)^2, initial square is 9.

3, 31, 3101, 31010001, 3101000100000001, 9806223340409913487644162249555, 310100010000000100000000000000014337285304591730671503423653032

Offset

0,1

Comments

Next terms are 126, 251 and 502 digits long.

Links

Table of n, a(n) for n=0..6.

Crossrefs

Cf. A048561.

Sequence in context: A066976 A172645 A201604 * A022499 A129209 A134721

Adjacent sequences: A048559 A048560 A048561 * A048563 A048564 A048565

Keyword

nonn,base

Author

Patrick De Geest, May 15 1999

Status

approved