E.g.f. C(x) + S(x), such that: C(x)^2 - S(x)^2 = 1 and D(x)^4 - S(x)^4 = 1, where functions S(x), C(x), and D(x) are described by A280625, A280626, and A280627, respectively.
A280628
E.g.f. C(x) + S(x), such that: C(x)^2 - S(x)^2 = 1 and D(x)^4 - S(x)^4 = 1, where functions S(x), C(x), and D(x) are described by A280625, A280626, and A280627, respectively.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =19a(6) =109a(7) =739a(8) =3889a(9) =35641a(10) =292681a(11) =3753721a(12) =37275121a(13) =500577499a(14) =5709311029a(15) =91718242219
External references
- oeis: A280628