a(0) = 0, a(1) = a(2) = 1, a(3) = 2, a(4) = 4, for n>3: a(n+1) = SORT[ a(n) + a(n-1) + a(n-2) + a(n-3) + a(n-4)], where SORT places digits in ascending order and deletes 0's.

A108565

a(0) = 0, a(1) = a(2) = 1, a(3) = 2, a(4) = 4, for n>3: a(n+1) = SORT[ a(n) + a(n-1) + a(n-2) + a(n-3) + a(n-4)], where SORT places digits in ascending order and deletes 0's.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =2a(4) =4a(5) =8a(6) =16a(7) =13a(8) =34a(9) =57a(10) =128a(11) =248a(12) =48a(13) =155a(14) =366a(15) =459a(16) =1267a(17) =2259a(18) =456a(19) =478a(20) =1499a(21) =5599a(22) =1129a(23) =1169a(24) =4789a(25) =11458a(26) =12444a(27) =3899a(28) =33579a(29) =16669

External references