Binomial transform of [1, 1, 2, 0, -2, 4, -6, 8, -10, 12,...].
1, 2, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105
2 seqfan posts
Thu Sep 2 13:36:40 CEST 2010 [seqfan] Re: typo? A135042 a(n) = 2*a(n-2) -a(n-2), n>3 [R. J. Mathar (mathar(AT)strw.leidenuniv.nl)