References to A051154

1 + 2^k + 4^k where k = 3^n.
7, 73, 262657, 18014398643699713


2 seqfan posts

Wed Feb 11 06:48:05 CET 2009    [seqfan] Re: A001576
Tue Feb 10 18:59:38 CET 2009    [seqfan] Re: A001576

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
Links to OEIS content are included according to The OEIS End-User License Agreement .