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A258860
Tenth pi-based arithmetic derivative of n.
2
0, 0, 0, 0, 4, 0, 4, 4, 622592, 622592, 0, 0, 4931584, 4, 2304, 12288, 38944768, 4, 12288, 81920, 38944768, 2304, 512, 81920, 714096, 81920, 12288, 65719296, 2298880, 0, 622592, 0, 278380544, 81920, 0, 4, 85988, 622592, 4, 2298880, 85988, 4, 208, 512, 13319168
OFFSET
0,5
LINKS
FORMULA
a(n) = A258851^10(n).
MAPLE
with(numtheory):
d:= n-> n*add(i[2]*pi(i[1])/i[1], i=ifactors(n)[2]):
A:= proc(n, k) option remember; `if`(k=0, n, d(A(n, k-1))) end:
a:= n-> A(n, 10):
seq(a(n), n=0..100);
CROSSREFS
Column k=10 of A258850.
Sequence in context: A258858 A258849 A258859 * A134944 A088375 A217220
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Jun 12 2015
STATUS
approved