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A264931
a(n) = 1+2*3^4...[n1]n where [n] is the nth hyperoperator.
0
1, 3, 7, 163
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OFFSET
1,2
COMMENTS
a[n]b is the square bracket notation for hyperoperation. See
A054871
for more info.
LINKS
Table of n, a(n) for n=1..4.
EXAMPLE
a(1) = 1;
a(2) = 1+2 = 3;
a(3) = 1+2*3 = 7;
a(4) = 1+2*3^4 = 163;
a(5) = 1+2*3^4^^5 which is too big to be included.
CROSSREFS
Cf.
A054871
,
A254225
,
A254310
.
Sequence in context:
A119958
A275195
A031881
*
A227890
A114789
A128273
Adjacent sequences:
A264928
A264929
A264930
*
A264932
A264933
A264934
KEYWORD
nonn
AUTHOR
Natan Arie Consigli
, Nov 29 2015
STATUS
approved
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Last modified May 23 16:36 EDT 2024. Contains 372765 sequences. (Running on oeis4.)