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A043319 a(n)=A033013(n)/16. 2

%I

%S 1,2,3,4,5,6,7,8,9,10,11,12,13,14,225,227,228,229,230,231,232,233,234,

%T 235,236,237,238,239,450,451,453,454,455,456,457,458,459,460,461,462,

%U 463,464,675,676,677,679,680,681,682,683,684

%N a(n)=A033013(n)/16.

%C Also: Numbers which, written in base 225, have all digits less than 15 and no two adjacent digits equal. - _M. F. Hasler_, Feb 03 2014

%o (PARI) is_A043319(n)=(n=[n])&&!until(!n[1], ((n=divrem(n[1], 225))[2]<15 && n[1]%15!=n[2])||return) \\ _M. F. Hasler_, Feb 03 2014

%Y Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

%K nonn,base

%O 1,2

%A _Clark Kimberling_

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Last modified April 12 21:47 EDT 2021. Contains 342932 sequences. (Running on oeis4.)