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A271552
a(0) = 1, a(n)= a(n1)[n1]a(n1).
1
1, 2, 4, 16, 18446744073709551616
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OFFSET
0,2
COMMENTS
a[n]b is the squarebracket notation for nth hyperoperation of a times b see
A054871
for more info.
LINKS
Table of n, a(n) for n=0..4.
EXAMPLE
a(0) = 1;
a(1) = a(0)[0]a(0) = 1’= 2;
a(2) = a(1)[1]a(1) = 2+2 = 4;
a(3) = a(2)[2]a(2) = 4*4 = 16;
a(4) = a(3)[3]a(3) = 16^16 = 18446744073709551616.
CROSSREFS
Cf.
A271551
.
Sequence in context:
A369378
A014221
A249760
*
A105510
A155951
A208132
Adjacent sequences:
A271549
A271550
A271551
*
A271553
A271554
A271555
KEYWORD
nonn
AUTHOR
Natan Arie Consigli
, Apr 09 2016
STATUS
approved
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Last modified May 22 13:22 EDT 2024. Contains 372755 sequences. (Running on oeis4.)