A174870 Odd indices m for which A174869(m) is <>1.

1, 9, 21, 25, 27, 33, 45, 57, 75, 77, 81, 85, 91, 93, 105, 115, 117, 121, 125, 133, 135, 141, 145, 147, 165, 169, 171, 175, 177, 187, 189, 201, 205, 213, 217, 221, 225, 231, 235, 243, 245, 247, 253, 261, 273, 275, 289, 297, 301, 315, 325, 333, 343, 345, 355, 357, 361, 363

Offset: 1

Author

Vladimir Shevelev, Mar 31 2010

Keywords

• nonn

Comments

All but the first term in the sequence are composite numbers.

Examples

			The 9 refers to A174869(9) = 7. The 21 refers to A174869(21) = 3.
		

Crossrefs

Cf. A174869, A006530, A103667, A023503, A023509, A174857, A020639 ,A002618, A036689.

Extensions

More terms from R. J. Mathar, Aug 10 2010