A036510 Smallest square containing exactly n 3's.

36, 3136, 343396, 1336336, 133333209, 3333330225, 313341333361, 1433333333961, 43333334833636, 1333333832344336, 123133353336333376, 3233633330337433321, 3333433332336331536, 2333303333385023333376, 133333533332333233936

Offset

1,1

Comments

a(20) > 10^28. - Giovanni Resta, Jul 27 2018

Links

Giovanni Resta, Table of n, a(n) for n = 1..19 (first 17 terms from Jon E. Schoenfield)

Mathematica

a[n_] := Block[{k=1}, While[DigitCount[k^2, 10, 3] != n, k++]; k^2]; Array[a, 6] (* Giovanni Resta, Jul 27 2018 *)

Crossrefs

Cf. A048348. - Jon E. Schoenfield, Jan 24 2009

Sequence in context: A268365 A004706 A061844 * A232669 A338076 A303339

Adjacent sequences: A036507 A036508 A036509 * A036511 A036512 A036513

Keyword

nonn,base

Author

David W. Wilson

Extensions

More terms from Jon E. Schoenfield, Jan 14 2009

Status

approved