A035072 -id:A035072 - cp's OEIS frontend

A035076 a(n) is root of square starting with digit 9: first term of runs.

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

Patrick De Geest, Nov 15 1998

Cf. A067479 (squares), A017936.

Cf. 2: A035069, 3: A035070, 4: A035071, 5: A035072, 6: A035073, 7: A035074, 8: A035075.

Ceiling[Sqrt[9*10^Range[2,30]]] (* Harvey P. Dale, Aug 07 2013 *)

a(n) = ceiling(sqrt(9*10^n)), n > 1.

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

Amarnath Murthy, Feb 09 2002

Robert Israel, Table of n, a(n) for n = 3..998

Cf. A035072 (roots), A045788, A067479 (2..9).

seq(ceil(sqrt(5*10^(d-1)))^2, d=3..30); # Robert Israel, Sep 30 2016

Table[Ceiling[Sqrt[5*10^n]]^2,{n,2,20}] (* Harvey P. Dale, Aug 23 2014 *)

for(n=3,22,a=ceil(sqrt(5*10^(n-1)))^2; print(a))

a(n) = ceiling(sqrt(5*10^(n-1)))^2, n>2. - Rick L. Shepherd, Feb 18 2002

More terms from Rick L. Shepherd, Feb 18 2002

cp's OEIS Frontend

A035076 a(n) is root of square starting with digit 9: first term of runs.

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A067475 Smallest n-digit square starting with 5.

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