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Break up the cyclic concatenation 1234567890123456789023... into parts nontrivially (a(n) is not equal to n) such that the n-th part is a multiple of n.
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%I #9 May 24 2020 04:00:11

%S 12,34,567,8,90,12,34567890,123456,789012,34567890,

%T 123456789012345678901

%N Break up the cyclic concatenation 1234567890123456789023... into parts nontrivially (a(n) is not equal to n) such that the n-th part is a multiple of n.

%C a(12) does not exist: 23 mod 12, 234 mod 12, 2345 mod 12, ... is periodic and does not contain 0. - _Sam Alexander_, Feb 23 2004

%Y Cf. A082241.

%K base,fini,full,nonn

%O 1,1

%A _Amarnath Murthy_, Apr 11 2003

%E More terms from _Sam Alexander_, Feb 23 2004