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A099309 Numbers n whose k-th arithmetic derivative is nonzero for all k. Complement of A099308. +0
7
4, 8, 12, 15, 16, 20, 24, 26, 27, 28, 32, 35, 36, 39, 40, 44, 45, 48, 50, 51, 52, 54, 55, 56, 60, 63, 64, 68, 69, 72, 74, 75, 76, 80, 81, 84, 86, 87, 88, 90, 91, 92, 95, 96, 99, 100, 102, 104, 106, 108, 110, 111, 112, 115, 116, 117, 119, 120, 122, 123, 124, 125, 128, 132 (list; graph; listen)
OFFSET

1,1

REFERENCES

See A003415

CROSSREFS

Cf. A003415 (arithmetic derivative of n), A099307 (least k such that the k-th arithmetic derivative of n is zero), A099308 (numbers whose k-th arithmetic derivative is zero for some k).

Sequence in context: A026145 A044889 A009023 this_sequence A073432 A133803 A155090

Adjacent sequences: A099306 A099307 A099308 this_sequence A099310 A099311 A099312

KEYWORD

nonn

AUTHOR

T. D. Noe (noe(AT)sspectra.com), Oct 12 2004

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.


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