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A230304 a(n) = 10^( (10^n-1)/9 + n) + 1. 0
101, 10000000000001, 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Makowski observes that A230093(a(n)) >= 2 for all n >= 1.

REFERENCES

Makowski, Andrzej. On Kaprekar's "junction numbers''. Math. Student 34 1966 77 (1967). MR0223292 (36 #6340)

LINKS

Table of n, a(n) for n=1..3.

Index entries for Colombian or self numbers and related sequences

CROSSREFS

Cf. A006064, A230093, A230094, A230100.

Sequence in context: A262627 A259199 A006064 * A015164 A325776 A325775

Adjacent sequences:  A230301 A230302 A230303 * A230305 A230306 A230307

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Oct 26 2013

STATUS

approved

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Last modified October 20 20:08 EDT 2019. Contains 328271 sequences. (Running on oeis4.)