a(1)=1, a(n) = smallest odd number such that all sums of pairs of (not necessarily distinct) terms in the sequence are distinct.

A034757

a(1)=1, a(n) = smallest odd number such that all sums of pairs of (not necessarily distinct) terms in the sequence are distinct.

Terms

    a(0) =1a(1) =3a(2) =7a(3) =15a(4) =25a(5) =41a(6) =61a(7) =89a(8) =131a(9) =161a(10) =193a(11) =245a(12) =295a(13) =363a(14) =407a(15) =503a(16) =579a(17) =721a(18) =801a(19) =949a(20) =1129a(21) =1185a(22) =1323a(23) =1549a(24) =1643a(25) =1831a(26) =1939a(27) =2031a(28) =2317a(29) =2623

External references