a(1) = 1, a(2) = 2; for n > 2, sum of absolute differences of all combinations of pairs of previous terms.
A109851
a(1) = 1, a(2) = 2; for n > 2, sum of absolute differences of all combinations of pairs of previous terms.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =2a(4) =4a(5) =14a(6) =74a(7) =494a(8) =3854a(9) =34094a(10) =336494a(11) =3662894a(12) =43579694a(13) =562498094a(14) =7827355694a(15) =116800219694
External references
- oeis: A109851