A067473 Smallest n-digit square starting with 3.

36, 324, 3025, 30276, 300304, 3003289, 30008484, 300017041, 3000081529, 30000318436, 300000484729, 3000000666601, 30000004655076, 300000032019081, 3000000027329536, 30000000084216561, 300000000542063364

Offset: 2

Author

Amarnath Murthy, Feb 09 2002

Keywords

• base
• easy
• nonn

Crossrefs

Cf. A035070 (roots), A045786, A067479 (2..9).

Programs

PARI

for(n=2,25,a=ceil(sqrt(3*10^(n-1)))^2; print(a))

Formula

a(n) = ceiling(sqrt(3*10^(n-1)))^2, n>1. - Rick L. Shepherd, Feb 14 2002

Extensions

More terms from Rick L. Shepherd, Feb 14 2002