References to A130638

a(n) = 1 iff d(n) = d(n+1), otherwise a(n)=0; where d(n) is the number of divisors of natural number.
0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1


1 seqfan posts

Sat May 2 16:12:32 CEST 2009    [seqfan] Re: OEIS duplicate hunt

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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