A284279 Primitive terms of A131884.

276, 306, 396, 564, 660, 696, 780, 828, 888, 966, 996, 1074, 1086, 1098

Offset: 1

Author

Sergey Pavlov, Mar 24 2017

Keywords

• nonn
• more

Comments

In other words, terms of A131884 that cannot be written as k*t where k is an integer, k > 1, t is a term of A131884.

Examples

			Since 276 is the first term of A131884, the number is in the sequence. But 131884(4) = 552 is not, because A131884(4) = 2 * A131884(1) = 2 * 276.
		

Crossrefs

Cf. A131884.