Numbers k such that k surrounded by digit '5' is a lucky number.

Terms

a(0) =3a(1) =23a(2) =29a(3) =32a(4) =33a(5) =38a(6) =45a(7) =51a(8) =65a(9) =75a(10) =90a(11) =96a(12) =108a(13) =110a(14) =113a(15) =116a(16) =125a(17) =132a(18) =135a(19) =147a(20) =167a(21) =183a(22) =185a(23) =186a(24) =195a(25) =204a(26) =216a(27) =218a(28) =227a(29) =236