a(n) = number of Egyptian fractions 1 = 1/x_1 + ... + 1/x_k (for any k), with 0 < x_1 <= ... <= x_k = n.
A092666
a(n) = number of Egyptian fractions 1 = 1/x_1 + ... + 1/x_k (for any k), with 0 < x_1 <= ... <= x_k = n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =1a(5) =7a(6) =1a(7) =10a(8) =10a(9) =26a(10) =1a(11) =107a(12) =1a(13) =83a(14) =375a(15) =384a(16) =1a(17) =1418a(18) =1a(19) =4781a(20) =7812a(21) =1529a(22) =1a(23) =33665a(24) =9789a(25) =4276a(26) =27787a(27) =168107a(28) =1a(29) =584667
External references
- oeis: A092666