A347327 - OEIS

%I #6 Sep 14 2021 14:01:48

%S 0,1,2,3,4,5,6,7,9,11,13,15,17,19,22,29,41,58,89,148,263,491,944,1846,

%T 3647,7244,14435,28812,57562,115057,230042,460008,919936,1839787,

%U 3679483,7358872,14717644,29435184,58870259,117740403,235480685,470961243,941922352,1883844565,3767688985,7535377819

%N Initial term in row n when A347317 is written as an irregular triangle.

%e The first few rows of A347317 are

%e    0;

%e    1,  1,  0;

%e    2,  2,  2,  0;

%e    3,  2,  4,  1,  1,  0;

%e    4,  4,  4,  1,  4,  0;

%e    5,  5,  4,  1,  6,  2,  1,  0;

%e ...

%e and the initial terms are 0, 1, 2, 3, 4, 5, ...  Note however (see A347318) that after a while this sequence increases at least exponentially.

%Y Cf. A347317, A347318.

%K nonn

%O 0,3

%A _N. J. A. Sloane_, Sep 14 2021

%E Terms a(20) and beyond from _Andrey Zabolotskiy_, Sep 14 2021