cp's OEIS Frontend

A116961 Numbers of the form 2^(2^k-1)-1, 2^(2^k-1), 2^(2^k)-1, 2^(2^k).

%I A116961 #7 Aug 05 2025 18:05:22
%S A116961 0,1,2,3,4,7,8,15,16,127,128,255,256,32767,32768,65535,65536,
%T A116961 2147483647,2147483648,4294967295,4294967296,9223372036854775807,
%U A116961 9223372036854775808,18446744073709551615,18446744073709551616
%N A116961 Numbers of the form 2^(2^k-1)-1, 2^(2^k-1), 2^(2^k)-1, 2^(2^k).
%C A116961 The values are important in binary computer arithmetic.
%Y A116961 Cf. A001146, A051179, A058891, A077585.
%K A116961 nonn
%O A116961 1,3
%A A116961 Henrik Lundquist (sploinker(AT)sploink.dk), Mar 30 2006
%E A116961 Edited by _Don Reble_, Mar 31 2006