References to A001221

Number of distinct primes dividing n (also called omega(n)).
0, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2, 1, 2, 1, 3, 1, 1, 2, 2


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

11 seqfan posts

Sat Feb 26 19:51:35 CET 2011    [seqfan] Re: Do all numbers of A174658 occur as balanced ternary reinterpretations of mu(d) sequences?
Sat Feb 26 03:29:19 CET 2011    [seqfan] Re: Do all numbers of A174658 occur as balanced ternary reinterpretations of mu(d) sequences?
Sat Aug 7 19:21:18 CEST 2010    [seqfan] A combinatorial problem: generalization
Wed Aug 4 13:52:34 CEST 2010    [seqfan] Re: A combinatorial problem
Wed Aug 4 08:36:44 CEST 2010    [seqfan] Re: A combinatorial problem
Tue Aug 3 11:00:45 CEST 2010    [seqfan] Re: A combinatorial problem
Mon Aug 2 22:10:12 CEST 2010    [seqfan] Re: A combinatorial problem
Mon Aug 2 21:46:34 CEST 2010    [seqfan] Re: A combinatorial problem
Mon Aug 2 21:43:41 CEST 2010    [seqfan] Re: A combinatorial problem
Mon Aug 2 20:27:43 CEST 2010    [seqfan] Re: A combinatorial problem
Mon Aug 2 11:11:08 CEST 2010    [seqfan] A combinatorial problem

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