1,3

1/1; 1/1 1/1; 1/1 1/3 1/1; 1/1 4/3 4/3 1/1; 1/1 7/3 8/3 7/3 1/1; 1/1 10/3 5/1 5/1 10/3 1/1; 1/1 13/3 25/3 10/1 25/3 13/3 1/1; 1/1 16/3 38/3 55/3 55/3 38/3 16/3 1/1; ...

Cf. A046534.

Sequence in context: A019603 A132476 A103279 this_sequence A011088 A156368 A068958

Adjacent sequences: A046541 A046542 A046543 this_sequence A046545 A046546 A046547

tabl,nonn

Mohammad K. Azarian (ma3(AT)evansville.edu)