

A242901


Smallest m such that A242885(m) = n.


2



1, 2, 6, 4, 10, 26, 46, 50, 36, 22, 110, 52, 88, 14, 140, 16, 34, 32, 76, 44, 168, 106, 146, 104, 100, 38, 522, 196, 64, 130, 3256, 224, 280, 94, 308, 526, 400, 266, 1026, 250, 386, 86, 298, 212, 438, 466, 674, 208, 1666, 200, 1236, 304, 424, 202, 550, 728
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OFFSET

1,2


COMMENTS

A242885(a(n)) = n and A242885(m) <> n for m < a(n);
n + a(n) is a divisor of n^n + a(n)^a(n).


LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..660


EXAMPLE

n = 3: a(3) = 6, 3^3 + 6^6 = 46683 = (3+6) * 5187;
n = 4: a(4) = 4, 4^4 + 4^4 = 512 = (4+4) * 64;
n = 5: a(5) = 10, 5^5 + 10^10 = 10000003125 = (5+10) * 666666875;
n = 6: a(6) = 26, 6^6 + 26^26 = 6156119580207157310796674288400250432 = (6+26) * 192378736881473665962396071512507826.


PROG

(Haskell)
a242901 = (+ 1) . fromJust . (`elemIndex` a242885_list)


CROSSREFS

Sequence in context: A065879 A065880 A090546 * A266013 A222423 A059909
Adjacent sequences: A242898 A242899 A242900 * A242902 A242903 A242904


KEYWORD

nonn


AUTHOR

Reinhard Zumkeller, May 25 2014


STATUS

approved



