a(n+4) = a(n+1) - a(n), a(0) = 1, a(1) = -4, a(2) = 0, a(3) = 1.
1, 4, 0, 1, 5, 4, 1, 6, 9, 3, 7, 15, 12, 4, 22, 27, 8, 26, 49, 35, 18, 75, 84
1 seqfan posts
Thu Nov 19 17:19:12 CET 2009 [seqfan] detective work related to Creighton Dement's "Floretions"