OFFSET
1,7
LINKS
Michel Lagneau, Table of n, a(n) for n = 1..4000 [2nd term in the 1024th pair corrected by Andrey Zabolotskiy]
EXAMPLE
The 8th pair {3,2} is in the sequence because there exists 5 finite groups of order 8: 3 Abelian groups and 2 non-Abelian groups.
MATHEMATICA
lst:={}; f[n_]:=Times@@PartitionsP/@Last/@FactorInteger@n; g[n_]:=FiniteGroupCount[n]-FiniteAbelianGroupCount[n]; Do[AppendTo[lst, {f[n], g[n]}], {n, 80}]; Flatten[lst]
CROSSREFS
KEYWORD
nonn
AUTHOR
Michel Lagneau, Mar 24 2014
STATUS
approved