A155877 - OEIS (original) (raw)

9, 11, 13, 15, 23, 25, 27, 37, 39, 51, 263, 265, 267, 277, 279, 291, 517, 519, 531, 771, 65543, 65545, 65547, 65557, 65559, 65571, 65797, 65799, 65811, 66051, 131077, 131079, 131091, 131331, 196611, 4294967303, 4294967305, 4294967307

EXAMPLE

a(1) = 3 + 3 + 3 = 9.

a(2) = 3 + 3 + 5 = 11.

a(3) = 3 + 5 + 5 = 13.

a(4) = 5 + 5 + 5 = 15.

a(5) = 3 + 3 + 17 = 23.

a(6) = 3 + 5 + 17 = 25.

a(7) = 5 + 5 + 17 = 27.

a(8) = 3 + 17 + 17 = 37.

a(9) = 5 + 17 + 17 = 39.

a(10) = 17 + 17 + 17 = 51.

a(11) = 3 + 3 + 257 = 263.