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A250434 Numbers whose squares remain squares when prepended with 8 and appended with 25 in base 10. 4
681937766, 100716507368734, 189028109645534, 71751688194664150, 227043315919690540, 297394840740237334, 1419552352384980734, 3520763199738226713640, 556493116743365697692834, 512910449523173299820851231016, 142652152739062776543664373622484, 2608329468084714843076226780545984 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..17

EXAMPLE

681937766^2 = 465039116697070756, 846503911669707075625 = 29094740275^2.

CROSSREFS

Cf. A249621, A249968, A249969, A249970, A249971, A249972, A250433, A250435.

Sequence in context: A172552 A172604 A172709 * A274363 A034651 A274813

Adjacent sequences:  A250431 A250432 A250433 * A250435 A250436 A250437

KEYWORD

nonn,base

AUTHOR

Chai Wah Wu, Nov 24 2014

STATUS

approved

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Last modified January 22 04:27 EST 2020. Contains 331133 sequences. (Running on oeis4.)