A035076
a(n) is root of square starting with digit 9: first term of runs.
Original entry on oeis.org
30, 95, 300, 949, 3000, 9487, 30000, 94869, 300000, 948684, 3000000, 9486833, 30000000, 94868330, 300000000, 948683299, 3000000000, 9486832981, 30000000000, 94868329806, 300000000000, 948683298051, 3000000000000
Offset: 2
A067472
Smallest n-digit square starting with 2.
Original entry on oeis.org
25, 225, 2025, 20164, 200704, 2002225, 20007729, 200024449, 2000057284, 20000182084, 200000361796, 2000001237796, 20000000402496, 200000010642496, 2000000040249600, 20000000215721449, 200000000447251216
Offset: 2
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Table[Ceiling[Sqrt[2*10^(n-1)]]^2,{n,2,30}] (* Harvey P. Dale, Apr 18 2021 *)
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for(n=2,25,a=ceil(sqrt(2*10^(n-1)))^2; print(a))
A067475
Smallest n-digit square starting with 5.
Original entry on oeis.org
529, 5041, 50176, 501264, 5004169, 50013184, 500014321, 5000045521, 50000090449, 500000309449, 5000000100624, 50000002660624, 500000010062400, 5000000124641041, 50000000111812804, 500000001150395524
Offset: 3
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seq(ceil(sqrt(5*10^(d-1)))^2, d=3..30); # Robert Israel, Sep 30 2016
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Table[Ceiling[Sqrt[5*10^n]]^2,{n,2,20}] (* Harvey P. Dale, Aug 23 2014 *)
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for(n=3,22,a=ceil(sqrt(5*10^(n-1)))^2; print(a))
A067473
Smallest n-digit square starting with 3.
Original entry on oeis.org
36, 324, 3025, 30276, 300304, 3003289, 30008484, 300017041, 3000081529, 30000318436, 300000484729, 3000000666601, 30000004655076, 300000032019081, 3000000027329536, 30000000084216561, 300000000542063364
Offset: 2
A067474
Smallest n-digit square starting with 4.
Original entry on oeis.org
4, 49, 400, 4096, 40000, 400689, 4000000, 40005625, 400000000, 4000056516, 40000000000, 400000591936, 4000000000000, 40000008597136, 400000000000000, 4000000100766916, 40000000000000000, 400000001222314089, 4000000000000000000, 40000000008389413041
Offset: 1
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nS[n_] := Module[{i = Floor[Sqrt[n]]}, If[i^2==n, i^2, (i + 1)^2]]; Table[nS[4 10^i], {i, 0, 25}]
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for(n=1,20,a=ceil(sqrt(4*10^(n-1)))^2; print(a))
A067476
Smallest n-digit square starting with 6.
Original entry on oeis.org
64, 625, 6084, 60025, 600625, 6002500, 60000516, 600005025, 6000051600, 60000012601, 600000512409, 6000001260100, 60000004765089, 600000028030404, 6000000011750889, 60000000353550625, 600000001175088900
Offset: 2
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Ceiling[Sqrt[6*10^Range[20]]]^2 (* Harvey P. Dale, Feb 28 2025 *)
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for(n=2,21,a=ceil(sqrt(6*10^(n-1)))^2; print(a))
A067477
Smallest n-digit square starting with 7.
Original entry on oeis.org
729, 7056, 70225, 700569, 7001316, 70006689, 700025764, 7000166889, 70000459776, 700001628921, 7000003645504, 70000012293201, 700000047060196, 7000000057996009, 70000000472817424, 700000000779640729
Offset: 3
A067478
Smallest n-digit square starting with 8.
Original entry on oeis.org
81, 841, 8100, 80089, 801025, 8003241, 80013025, 800041225, 8000050249, 80000162649, 800001447184, 8000004951184, 80000001609984, 800000042569984, 8000000160998400, 80000000297200369, 800000000000150481, 8000000001435765625, 80000000000015048100
Offset: 2
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nS[n_] := Module[{lr = Floor[Sqrt[n]]}, If[lr^2==n, lr^2, (lr + 1)^2]]; Table[nS[8 10^i], {i, 0, 20}]
Showing 1-8 of 8 results.