A343045 - OEIS

%I #13 Apr 08 2021 00:33:50

%S 0,1,3,3,5,5,11,11,11,11,11,11,17,17,17,17,17,17,23,23,23,23,23,23,29,

%T 29,29,29,29,29,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,

%U 59,59,59,59,59,59,59,59,59,59,59,59,89,89,89,89,89,89,89

%N a(0) = 0 and for any n > 0, a(n) = A343044(a(n-1), n).

%C This sequence has similarities with A087052 and A343041.

%C If we remove duplicate terms, then we obtain A343048.

%H Rémy Sigrist, <a href="/A343045/b343045.txt">Table of n, a(n) for n = 0..10000</a>

%H Rémy Sigrist, <a href="/A343045/a343045.gp.txt">PARI program for A343045</a>

%H <a href="/index/Di#dismal">Index entries for sequences related to dismal (or lunar) arithmetic</a>

%H <a href="/index/Pri#primorialbase">Index entries for sequences related to primorial base</a>

%e The first terms, in decimal and in primorial base, are:

%e   n   a(n)  prim(n)  prim(a(n))

%e   --  ----  -------  ----------

%e    0     0        0           0

%e    1     1        1           1

%e    2     3       10          11

%e    3     3       11          11

%e    4     5       20          21

%e    5     5       21          21

%e    6    11      100         121

%e    7    11      101         121

%e    8    11      110         121

%e    9    11      111         121

%e   10    11      120         121

%e   11    11      121         121

%e   12    17      200         221

%e   13    17      201         221

%e   14    17      210         221

%o (PARI) See Links section.

%Y Cf. A343041, A343044, A343048.

%Y Cf. A087052.

%K nonn,base

%O 0,3

%A _Rémy Sigrist_, Apr 05 2021