Expansion of e.g.f. -log( 1 - x^4 * exp(x) / 4! ).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =5a(6) =15a(7) =35a(8) =105a(9) =756a(10) =6510a(11) =46530a(12) =289245a(13) =1892605a(14) =16187171a(15) =170721915a(16) =1833783770a(17) =18875258780a(18) =196470797580