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1,2
Each term divides its successor, as in A203429.
Table of n, a(n) for n=1..9.
f[j_] := 1/(3 j); z = 16;
v[n_] := Product[Product[f[k] - f[j], {j, 1, k - 1}], {k, 2, n}]
1/Table[v[n], {n, 1, z}] (* A203428 *)
Table[v[n]/(3 v[n + 1]), {n, 1, z - 1}] (* A203429 *)
Cf. A203429, A203424, A203421.
Sequence in context: A248362 A006712 A248361 * A264741 A197205 A197803
Adjacent sequences: A203425 A203426 A203427 * A203429 A203430 A203431
sign
Clark Kimberling, Jan 02 2012
approved