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A098237 Composite de Polignac numbers (A006285). 5

%I #7 May 27 2015 17:43:15

%S 905,959,1199,1207,1211,1243,1271,1477,1529,1541,1589,1649,1719,1807,

%T 1829,1859,1927,1969,1985,2171,2231,2263,2279,2429,2465,2669,2983,

%U 2993,3029,3149,3215,3239,3341,3353,3431,3505,3665,3817,3845,3985

%N Composite de Polignac numbers (A006285).

%C Odd composites that are not the sum of a prime and a power of two.

%H Reinhard Zumkeller, <a href="/A098237/b098237.txt">Table of n, a(n) for n = 1..10000</a>

%o (Haskell)

%o a098237 n = a098237_list !! (n-1)

%o a098237_list = filter ((== 0) . a109925) a071904_list

%o -- _Reinhard Zumkeller_, May 27 2015

%Y Cf. A156695.

%Y Cf. A006285, A109925, A065381.

%K nonn

%O 1,1

%A _Ralf Stephan_, Aug 31 2004

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Last modified April 23 13:11 EDT 2024. Contains 371913 sequences. (Running on oeis4.)