A214328 - OEIS

%I #17 Apr 04 2024 10:37:50

%S 1,4,7,15,16,23,28,31,39,47,55,60,63,64,71,79,87,92,95,103,111,112,

%T 119,124,127,135,143,151,156,159,167,175,183,188,191,199,207,215,220,

%U 223,231,239,240,247,252,255,256,263,271,279,284,287,295,303,311,316,319,327,335,343,348,351,359,367,368,375,380,383,391,399,407,412,415,423,431,439

%N Intersection of A004214 and A018825.

%H Chai Wah Wu, <a href="/A214328/b214328.txt">Table of n, a(n) for n = 1..10000</a>

%F a(n) ~ 6 * n. - _Bill McEachen_, Mar 24 2024

%Y Cf. A000408, A004214, A000404, A018825, A214329.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Jul 26 2012, following a suggestion from _Hans Isdahl_, Apr 19 2012