Engel expansion of Sum_{k>=0} 1/(4 + k)^k.

Terms

a(0) =1a(1) =5a(2) =7a(3) =12a(4) =800a(5) =1502a(6) =3021a(7) =5079a(8) =6325a(9) =17537a(10) =50021a(11) =158855a(12) =826545a(13) =5023575a(14) =5097327a(15) =6369490a(16) =17535161a(17) =19462254a(18) =22535278a(19) =24898987a(20) =55666978a(21) =111142756a(22) =305716101a(23) =2653533055a(24) =3591521863a(25) =4889613852a(26) =10577043282