Engel expansion of Sum_{k>=0} 1/(5 + k)^k.

Terms

a(0) =1a(1) =6a(2) =8a(3) =13a(4) =19a(5) =21a(6) =105a(7) =401a(8) =1053a(9) =2012a(10) =4310a(11) =114743a(12) =235156a(13) =287799a(14) =1269345a(15) =1481217a(16) =1978865a(17) =2703836a(18) =3103386a(19) =3325474a(20) =18167905a(21) =553255504a(22) =782224772a(23) =1039603284a(24) =26121336847a(25) =37996375306a(26) =60661762577a(27) =109713190320