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

1,2

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

Table of n, a(n) for n=1..66.

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.

Sequence in context: A226953 A274133 A288483 * A304807 A045920 A242466

Adjacent sequences: A353305 A353306 A353307 * A353309 A353310 A353311

Keyword

nonn

Author

Antti Karttunen, Apr 17 2022

Status

approved