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Amiram Eldar, <a href="/A329419/b329419.txt">Table of n, a(n) for n = 1..10000</a>
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Supersequence of A016041.
allocated for Amiram EldarNumbers all of whose divisors are binary palindromes.
1, 3, 5, 7, 9, 15, 17, 21, 27, 31, 45, 51, 63, 73, 85, 93, 107, 119, 127, 153, 189, 219, 255, 257, 313, 365, 381, 443, 511, 765, 771, 1193, 1241, 1285, 1453, 1533, 1571, 1619, 1787, 1799, 1831, 1879, 2313, 3579, 3855, 4369, 4889, 5113, 5189, 5397, 5557, 5869
1,2
Subsequence of A163410, and differs from it from n = 65.
15 is in the sequence since the binary representations of its divisors, 1, 3, 5, and 15, are all palindromes: 1, 11, 101, and 1111.
binPalQ[n_] := PalindromeQ @ IntegerDigits[n, 2]; seqQ[n_] := binPalQ[n] && AllTrue[Most @ Divisors[n], binPalQ]; Select[Range[10^4], seqQ]
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nonn,base
Amiram Eldar, Nov 29 2019
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allocated for Amiram Eldar
recycled
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allocated for Eric Angelini
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