In A025487 the terms are in increasing order but here there are ups and downs.
Table of n, a(n) for n=2..49.
Sequence in context: A092169 A093108 A247519 * A060140 A025616 A305091
Adjacent sequences: A077557 A077558 A077559 * A077561 A077562 A077563
Amarnath Murthy, Nov 10 2002
Corrected and extended by Ray Chandler, Aug 24 2003