A353308 Numbers k for which A046523(A332223(k)) is equal to A046523(k).

1, 2, 9, 14, 15, 38, 39, 57, 68, 70, 92, 106, 110, 111, 125, 129, 130, 156, 170, 183, 190, 213, 230, 242, 245, 267, 275, 338, 350, 380, 393, 416, 441, 455, 494, 518, 522, 532, 572, 579, 585, 590, 595, 627, 638, 646, 650, 682, 686, 722, 740, 754, 782, 790, 850, 855, 879, 902, 946, 950, 957, 969, 994, 1090, 1118, 1227

Offset: 1

Author

Antti Karttunen, Apr 17 2022

Keywords

• nonn

Comments

Numbers k such that A348717(A332223(k)) = A348717(k) form a subsequence of this sequence. As its subsequence, we further have sequences A005940(1+A336702(n)) and A005940(1+A027687(n)), computed for n >= 1, and sorted into ascending order.

Links

• Index entries for sequences computed from indices in prime factorization
• Index entries for sequences related to sigma(n)

Crossrefs

Cf. A000203, A005940, A046523, A156552, A332223, A336702, A348717.

Cf. A324201 (subsequence), A353363.

Cf. also A019278, A323653.