a(0) = 0; a(n) = (1+a(n-1))^3 for n > 0.A115590a(0) = 0; a(n) = (1+a(n-1))^3 for n > 0.Terms a(0) =0a(1) =1a(2) =8a(3) =729a(4) =389017000External referencesoeis: A115590