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 A061500 Integer part of arithmetic mean of distinct numbers that can be formed from the nonzero digits of n. 2

%I

%S 1,2,3,4,5,6,7,8,9,5,6,9,12,15,18,21,24,27,30,11,9,12,15,18,21,24,27,

%T 30,33,16,12,15,18,21,24,27,30,33,36,22,15,18,21,24,27,30,33,36,39,27,

%U 18,21,24,27,30,33,36,39,42,33,21,24,27,30,33,36,39,42,45,38,24,27,30,33,36,39

%N Integer part of arithmetic mean of distinct numbers that can be formed from the nonzero digits of n.

%D Amarnath Murthy, An Interesting result in Combinatorics, Mathematics and Informatics Quarterly, 3/99, vol. 9, Bulgaria.

%e a(10) = floor(1+10)/2 =5. a(12) = 9: the distinct numbers formed by the digits of 12 are 1, 2, 12, 21. The arithmetic mean of these numbers is 36/4 = 9.

%Y A061487, A061499.

%K base,nonn

%O 1,2

%A _Amarnath Murthy_, May 06 2001

%E Corrected and extended by Asher Natan Auel (auela(AT)reed.edu), May 14, 2001

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Last modified October 30 03:24 EDT 2020. Contains 338076 sequences. (Running on oeis4.)