A369659 Numbers that are not multiples of 3, but their arithmetic derivative is.

1, 8, 14, 20, 26, 35, 38, 44, 50, 62, 64, 65, 68, 74, 77, 86, 92, 95, 110, 112, 116, 119, 122, 125, 134, 143, 146, 155, 158, 160, 161, 164, 170, 185, 188, 194, 196, 203, 206, 208, 209, 212, 215, 218, 221, 230, 236, 242, 254, 275, 278, 280, 284, 287, 290, 299, 302, 304, 305, 314, 323, 326, 329, 332, 335, 341, 343

Offset

1,2

Links

Table of n, a(n) for n=1..67.

Prog

(PARI) \\ See A369658.

Crossrefs

Intersection of A001651 and A327863.

Subsequence of A369644, which is a subsequence of A327863.

Includes A030078 \ {27} as a subsequence.

Cf. A003415, A369658 (characteristic function).

Cf. also A046337, A360110, A369969 for cases k=2, 4, 5 of "Nonmultiples of k whose arithmetic derivative is a multiple of k".

Sequence in context: A091575 A091572 A369644 * A096786 A114527 A345089

Adjacent sequences: A369656 A369657 A369658 * A369660 A369661 A369662

Keyword

nonn

Author

Antti Karttunen, Feb 10 2024

Status

approved