We define a triangular array closely related to Stern’s diatomic array and show that for a fixed integer r ≥ 1, the sum ur(n) of the rth powers of the entries in row n satisfy a linear recurrence with ...

Laxton introduced a group structure on the set of equivalence classes of linear recurrence sequences of degree 2. This result yields much information on the divisibilities of such sequences. In this ...

Radiofrequency ablation technique was not associated with any difference in atrial fibrillation recurrence after redo ablation despite durable initial pulmonary vein isolation, researchers reported.