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a(1)=1; starting with n>1, concatenate distinct divisors which are in A050376 in increasing order and repeat until a term of A050376 is reached (a(n)=0 if no term of A050376 is ever reached).
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%I #16 Oct 13 2014 12:27:56

%S 1,2,3,4,5,23,7,731173,9,25,11,31397,13,313,1129,16,17,29,19,59,37,

%T 211,23,731173,25,3251,313,47,29,547,31,313289,311,31397,1129,49,37,

%U 373,313,961,41,379,43,3137,59,223,47,479,49,71443,317,31123,53,239,773

%N a(1)=1; starting with n>1, concatenate distinct divisors which are in A050376 in increasing order and repeat until a term of A050376 is reached (a(n)=0 if no term of A050376 is ever reached).

%C Fermi-Dirac analog of A037274 (terms of A050376 are Fermi-Dirac primes).

%H Hiroaki Yamanouchi, <a href="/A248713/b248713.txt">Table of n, a(n) for n = 1..100</a>

%e We have 40 = 2*4*5 -> 245 = 5*49 -> 549 = 9*61 -> 961 is in A050376. So a(40) = 961.

%Y Cf. A037274, A050376, A084318.

%K nonn,base

%O 1,2

%A _Vladimir Shevelev_, Oct 12 2014

%E a(8) and a(34) corrected by _Hiroaki Yamanouchi_, Oct 13 2014