%I #12 Aug 01 2023 11:16:04

%S 44,45,104,105,116,117,164,165,224,225,272,273,296,297,315,344,345,

%T 356,357,405,464,465,512,513,525,560,561,584,585,620,621,693,704,705,

%U 765,776,777,824,825,836,837,860,861,884,885,945,1004,1005,1112,1113,1125,1155

%N Numbers k such that sigma(k) > sigma(k+1) > sigma(k+2).

%H Seiichi Manyama, <a href="/A364657/b364657.txt">Table of n, a(n) for n = 1..10000</a>

%o (PARI) isok(n) = sigma(n)>sigma(n+1) && sigma(n+1)>sigma(n+2);

%Y Cf. A050944, A053226, A364659.

%K nonn,easy

%O 1,1

%A _Seiichi Manyama_, Aug 01 2023