A045855 Numbers whose square has initial digit '1'.

1, 4, 10, 11, 12, 13, 14, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136

Offset

1,2

Links

N. J. A. Sloane, Table of n, a(n) for n = 1..20000

Mathematica

Select[Range[150], First[IntegerDigits[#^2]]==1&] (* Harvey P. Dale, Aug 28 2012 *)

Crossrefs

Cf. A045784, A272671.

Sequence in context: A292910 A292954 A355497 * A244216 A240580 A102535

Adjacent sequences: A045852 A045853 A045854 * A045856 A045857 A045858

Keyword

nonn,base

Author

Jeff Burch

Status

approved