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A006887 Kaprekar triples: q such that q=x+y+z and q^3=x*10^2n + y*10^n + z, where z < 10^n and n is the number of digits in q. q is not a power of 10 (except q=1)
(Formerly M4478)
4
1, 8, 45, 297, 2322, 2728, 4445, 4544, 4949, 5049, 5455, 5554, 7172, 27100, 44443, 55556, 60434, 77778, 143857, 208494, 226071, 279720, 313390, 324675, 329967, 346060, 368928, 395604, 422577, 427868, 461539, 472823, 478115, 488214, 494208 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

Douglas E. Iannucci and Bertrum Foster, Kaprekar Triples, Journal of Integer Sequences, Vol. 8 (2005), Article 05.4.8.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

D. Wells, The Penguin Dictionary of Curious and Interesting Numbers. Penguin Books, NY, 1986, 151.

LINKS

Table of n, a(n) for n=1..35.

Douglas E. Iannucci and Bertrum Foster, Kaprekar Triples, Journal of Integer Sequences, Vol. 8 (2005), Article 05.4.8.

R. Munafo, Kaprekar Sequences

CROSSREFS

Sequence in context: A163003 A055422 A204618 * A009369 A120044 A002686

Adjacent sequences:  A006884 A006885 A006886 * A006888 A006889 A006890

KEYWORD

nonn,base

AUTHOR

Robert Munafo

EXTENSIONS

Entry revised by Larry Reeves (larryr(AT)acm.org), Apr 25 2001 and Dec 08, 2002

STATUS

approved

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Last modified March 26 23:19 EDT 2017. Contains 284141 sequences.