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A137046 Numbers n such that n and the square of n use only the digits 1, 4, 5, 6 and 7. 1
1, 4, 74, 76, 746, 6454, 6754, 7466, 64476, 67466, 67576, 74476, 74616, 644574, 664166, 667576, 675771, 717466, 751776, 4176776, 6455746, 6746454, 7151616, 7174616, 7467574, 64154154, 64556654, 66461754, 66751454, 67651616, 67651716, 74474476, 417751666, 664615766, 664647776, 667567716, 674174766, 674667116, 715167576, 717464116 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Generated with DrScheme

LINKS

Jonathan Wellons, Table of n, a(n) for n=1..231

J. Wellons, Tables of Shared Digits

EXAMPLE

745764545654154^2 = 556164757554746745767777455716

CROSSREFS

Sequence in context: A092871 A222767 A090212 * A104335 A156494 A232371

Adjacent sequences:  A137043 A137044 A137045 * A137047 A137048 A137049

KEYWORD

base,nonn

AUTHOR

Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008

STATUS

approved

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Last modified August 3 08:10 EDT 2020. Contains 336197 sequences. (Running on oeis4.)