A291702 Main diagonal of A291701.
1, -1, 1, -4, 13, -36, 100, -281, 797, -2281, 6546, -18778, 53872, -154662, 444263, -1276284, 3665773, -10524939, 30203731, -86624174, 248257298, -710882708, 2033663952, -5811660425, 16588828304, -47291077636, 134630218334, -382697080366, 1086083438999
Offset: 0
Keywords
Crossrefs
Cf. A291701.
Formula
a(n) = [x^n] (1 - x/(1 - x^2/(1 - x^3/(1 - x^4/(1 - x^5/(1 - ...))))))^n, a continued fraction.