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A067472
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Smallest n-digit square starting with 2.
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2
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25, 225, 2025, 20164, 200704, 2002225, 20007729, 200024449, 2000057284, 20000182084, 200000361796, 2000001237796, 20000000402496, 200000010642496, 2000000040249600, 20000000215721449, 200000000447251216
(list; graph; refs; listen; history; internal format)
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OFFSET
| 2,1
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FORMULA
| a(n) = ceiling(sqrt(2*10^(n-1)))^2, n>1. - Rick L. Shepherd (rshepherd2(AT)hotmail.com), Feb 14 2002
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PROG
| (PARI) for(n=2, 25, a=ceil(sqrt(2*10^(n-1)))^2; print(a))
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CROSSREFS
| Cf. A035069 (roots), A045785, A067479 (2..9).
Sequence in context: A065779 A095241 A061839 * A058426 A189275 A048384
Adjacent sequences: A067469 A067470 A067471 * A067473 A067474 A067475
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KEYWORD
| base,easy,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Feb 09 2002
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EXTENSIONS
| More terms from Rick L. Shepherd (rshepherd2(AT)hotmail.com), Feb 14 2002
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