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A107626 Numbers n such that every digit of both n and n^2 contains a loop (only digits 0,4,6,8,9 in n and n^2). 2
8, 64, 80, 98, 640, 664, 800, 898, 980, 998, 6400, 6640, 6664, 8000, 8980, 8998, 9800, 9980, 9998 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Corresponding squares in A107627. Cf. A001744 Every digit contains a loop.

LINKS

Table of n, a(n) for n=1..19.

MATHEMATICA

Do[id=Union[IntegerDigits[n^2], IntegerDigits[n]]; If[Count[id, 1]+Count[id, 2]+Count[id, 3]+Count[id, 5]+Count[id, 7]==0, Print[n]], {n, 10000}]

CROSSREFS

Cf. A001744, A107624, A107625, A107627.

Sequence in context: A008462 A043078 A037413 * A136956 A161146 A208380

Adjacent sequences:  A107623 A107624 A107625 * A107627 A107628 A107629

KEYWORD

nonn,base,dumb

AUTHOR

Zak Seidov, May 18 2005

STATUS

approved

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Last modified April 29 19:06 EDT 2017. Contains 285613 sequences.