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A276579 Squarefree numbers larger than one for which A268669(A048675(n)) is a power of two. 3

%I #7 Sep 18 2016 20:08:16

%S 2,3,5,6,7,10,11,13,15,17,19,21,22,23,29,31,35,37,39,41,43,46,47,53,

%T 55,59,61,67,71,73,77,79,83,85,87,89,91,97,101,103,107,109,113,118,

%U 127,131,133,137,139,143,149,151,155,157,163,167,173,179,181,183,187,191,193,197,199,210,211,221,223,227,229,233

%N Squarefree numbers larger than one for which A268669(A048675(n)) is a power of two.

%C Terms present in arrays A255483 & A276578, sorted into ascending order.

%H Antti Karttunen, <a href="/A276579/b276579.txt">Table of n, a(n) for n = 1..2000</a>

%o (Scheme, with _Antti Karttunen_'s IntSeq-library)

%o (define A276579 (MATCHING-POS 1 1 (lambda (n) (and (> n 1) (not (zero? (A008683 n))) (= 1 (A000120 (A268669 (A048675 n))))))))

%Y Cf. A000120, A008683, A008966, A048675, A209229, A268669.

%Y Cf. array A255483 (A276578).

%Y Subsequence of A005117.

%Y A000040 is a subsequence.

%K nonn

%O 1,1

%A _Antti Karttunen_, Sep 18 2016

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)