A139013 a(n) = A074924(n)/2.

3, 5, 6, 12, 21, 24, 31, 36, 42, 45, 55, 60, 61, 87, 102, 104, 110, 116, 120, 132, 153, 163, 168, 186, 193, 204, 205, 222, 227, 228, 234, 235, 237, 261, 273, 275, 297, 300, 315, 320, 321, 343, 370, 375, 381, 383, 394, 401, 426, 438, 441, 460, 468, 485, 486, 489

Offset: 1

Author

Zak Seidov, Apr 06 2008

Keywords

• nonn

Links

• Zak Seidov, Table of n, a(n) for n = 1..1000.

Crossrefs

Cf. A074924.