A219255 Numbers n for which prime(n) divides at least one sum of two consecutive terms in sequence {f_m(k)}, defined in A224523.

1, 2, 3, 5, 6, 7, 8, 10, 17, 23, 24, 25, 34, 36, 37, 45, 51, 120, 124, 219, 231, 244, 251, 2034, 2057, 3121, 4176, 5185, 9492

Offset: 1

Author

Vladimir Shevelev, Apr 11 2013

Keywords

• nonn
• more

Comments

Places of the last elements of runs of the same terms in A224523 are in the sequence. Whether these sequences coincide one to another?

Examples

			7 is in the sequence, since prime(7)=17 and sequence {f_7(k)} is periodic with period {1,1,2,3,5,8,13,21,2,1,3,4,7,11,18}, such that sum of terms 13+21=34 is divisible by 17.
		

Crossrefs

Cf. A078414, A078412, A214684, A219328, A224523.

Programs

Mathematica

Rest[Flatten[Position[Differences[A224523], Except[0]]]] (* Peter J. C. Moses, Apr 13 2013 *)