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Numbers k such that both k and k+1 are Zeckendorf-Niven numbers (A328208) and lazy-Fibonacci-Niven numbers (A328212).
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%I #11 Dec 28 2019 14:19:07

%S 1,7475,10205,13740,40754,52479,93044,95984,141911,151487,196416,

%T 198255,202824,202895,213920,231552,335535,339744,363320,366876,

%U 404719,408680,434259,446480,487710,495159,504440,528408,585599,607410,645560,646575,665567,735020,736280

%N Numbers k such that both k and k+1 are Zeckendorf-Niven numbers (A328208) and lazy-Fibonacci-Niven numbers (A328212).

%C Can 3 consecutive numbers be both Zeckendorf-Niven numbers and lazy-Fibonacci-Niven numbers? Equivalently, are there numbers that are both in A328210 and A328214?

%H Amiram Eldar, <a href="/A330713/b330713.txt">Table of n, a(n) for n = 1..1000</a>

%e 7475 is a term since A007895(7475) = 5 and A112310(7475) = 13 and both 5 and 13 are divisors of 7475, and A007895(7476) = 6 and A112310(7476) = 12 and both 6 and 12 are divisors of 7476.

%Y Intersection of A328209 and A328213.

%Y Cf. A328208, A328210, A328212, A328214, A330711.

%K nonn

%O 1,2

%A _Amiram Eldar_, Dec 27 2019