Length of longest cycle in n-th row of A329278 (triangular numbers mod 2^n).

Terms

a(0) =1a(1) =1a(2) =2a(3) =6a(4) =14a(5) =30a(6) =40a(7) =55a(8) =247a(9) =488a(10) =818a(11) =1652a(12) =4060a(13) =3754a(14) =15748a(15) =20161a(16) =20128a(17) =85861a(18) =159827a(19) =211265a(20) =620076a(21) =993084a(22) =1487646a(23) =2542051a(24) =12137774a(25) =28169497a(26) =32223531a(27) =87591110a(28) =232647749a(29) =379598603