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A167888
n-th single or isolated number^n-th non-single or nonisolated number.
0
1, 4, 216, 248832, 612220032, 78310985281, 19683000000000, 4808584372417849, 717368321110468608, 5460999706120583177327, 1379946262057143768386569, 470184984576000000000000000, 164890958756244164895763202881
OFFSET
1,2
FORMULA
a(n)=A167706(n)^A167707(n).
EXAMPLE
a(1)=2^0=1, a(2)=4^1=4, a(3)=6^3=216, a(4)=12^5=248832.
CROSSREFS
Sequence in context: A269283 A055627 A260619 * A371204 A036740 A038786
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from R. J. Mathar, May 30 2010
STATUS
approved