1,2
a(10^n) =0 = a(10k+5),if 10k + 5 is not==0 (mod 25). Are there any other numbers r such that a(r) =0?
Sequence in context: A125395 A126553 A009797 this_sequence A006763 A105250 A055752
Adjacent sequences: A111447 A111448 A111449 this_sequence A111451 A111452 A111453
base,more,nonn
Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 03 2005
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