login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

Matrix square of triangle A091602.
3

%I #5 Dec 26 2023 18:11:18

%S 1,2,1,4,0,1,6,4,0,1,10,4,2,0,1,17,8,4,2,0,1,25,12,7,2,2,0,1,38,25,9,

%T 7,2,2,0,1,57,33,19,8,5,2,2,0,1,84,57,27,16,8,5,2,2,0,1,120,81,46,22,

%U 15,6,5,2,2,0,1,174,129,68,41,19,15,6,5,2,2,0,1,243,182,107,56,36,18,13,6

%N Matrix square of triangle A091602.

%e 1; 2,1; 4,0,1; 6,4,0,1; 10,4,2,0,1; ...

%Y Cf. A091602, A091610 (row sums), A091611 (column 1).

%K nonn,tabl

%O 1,2

%A _Christian G. Bower_, Jan 23 2004