a(n) = (35^n - 1)/34.A218738a(n) = (35^n - 1)/34.Terms a(0) =0a(1) =1a(2) =36a(3) =1261a(4) =44136a(5) =1544761a(6) =54066636a(7) =1892332261a(8) =66231629136External referencesoeis: A218738