A213444 Numbers n such that decimal expansion of n^2 contains a 2. (Formerly N1556)

5, 11, 15, 16, 17, 18, 23, 25, 27, 32, 35, 36, 39, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 57, 61, 65, 68, 73, 75, 77, 79, 82, 85, 89, 91, 95, 96, 101, 105, 106, 110, 111, 112, 113, 114, 115, 118, 123, 125, 127, 132, 135, 139, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166

Offset

1,1

References

Archimedeans Problems Drive, Eureka, 18 (1955), 17.

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

Links

Table of n, a(n) for n=1..79.

Crossrefs

Cf. A213445.

Sequence in context: A091718 A078002 A171418 * A314002 A137004 A137005

Adjacent sequences: A213441 A213442 A213443 * A213445 A213446 A213447

Keyword

nonn,base

Author

N. J. A. Sloane, Jun 12 2012

Status

approved