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Number of lucky 2,6 triples <= 10^n.
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%I #18 Apr 16 2022 05:47:30

%S 1,2,5,16,52,243,1374,8503,55537

%N Number of lucky 2,6 triples <= 10^n.

%C A lucky 2,6 triple is a triple (k, k+2, k+6) such that k, k+2, and k+6 are lucky numbers and no other number between k and k+6 is lucky. - _Sean A. Irvine_, Apr 04 2022

%C A triple is counted in a(n) if its smallest member is at most 10^n. - _Pontus von Brömssen_, Apr 04 2022

%Y Cf. A000959.

%K nonn,less,more

%O 0,2

%A _Robert G. Wilson v_, Jun 09 2000

%E a(7) from _Sean A. Irvine_, Apr 04 2022

%E a(8) from _Pontus von Brömssen_, Apr 04 2022