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A090293 Least k > n such that the decimal expansion of k^2 ends in n^2. 3
10, 9, 8, 7, 46, 15, 44, 43, 42, 41, 90, 239, 488, 237, 486, 35, 484, 233, 482, 231, 80, 229, 478, 227, 476, 75, 474, 223, 472, 221, 70, 219, 2468, 1217, 2466, 285, 2464, 1213, 2462, 1289, 460, 1209, 2458, 1293, 2456, 205, 2454, 1297, 2452, 1201, 150, 1301 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

T. D. Noe, Table of n, a(n) for n = 0..1000

FORMULA

a(n) = A090292(n)^(1/2).

MATHEMATICA

Table[k = n; d = IntegerDigits[n^2]; len = Length[d]; While[k++; Take[IntegerDigits[k^2], -len] != d]; k, {n, 0, 51}] (* T. D. Noe, Mar 23 2012 *)

CROSSREFS

Cf. A090292.

Sequence in context: A055121 A249591 A132674 * A164732 A070562 A216557

Adjacent sequences:  A090290 A090291 A090292 * A090294 A090295 A090296

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Nov 29 2003

EXTENSIONS

More terms from Vladeta Jovovic, Jun 18 2004

STATUS

approved

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Last modified May 13 01:39 EDT 2021. Contains 343830 sequences. (Running on oeis4.)