A291631 Numbers k such that 6 is the smallest decimal digit of k^2.

26, 83, 264, 313, 824, 836, 883, 887, 937, 3114, 8167, 8813, 8887, 8937, 9417, 9833, 25824, 26264, 29614, 29626, 89324, 89437, 93637, 94863, 98336, 260167, 262617, 314113, 817863, 817924, 818333, 818474, 823887, 828667, 835386, 875614, 931117, 936417, 937383

Offset

1,1

Comments

9949370777987917 is the smallest number k such that the smallest decimal digit of k^2 is 7. - Chai Wah Wu, Sep 08 2017

Links

Chai Wah Wu, Table of n, a(n) for n = 1..10001

Example

26 is in the sequence because 26^2 = 676, the smallest decimal digit of which is 6.

Mathematica

Select[Range[10^6], Min[IntegerDigits[#^2]]==6 &] (* Vincenzo Librandi, Sep 09 2017 *)

Prog

(PARI) select(k->vecmin(digits(k^2))==6, vector(1000000, k, k))

Crossrefs

Cf. A291625, A291626, A291627, A291628, A291629, A291630.

Sequence in context: A042332 A260199 A239172 * A325819 A138081 A118543

Adjacent sequences: A291628 A291629 A291630 * A291632 A291633 A291634

Keyword

nonn,base

Author

Colin Barker, Aug 28 2017

Status

approved