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A271551 a(0) = 0, a(n) = a(n-1)[n-1]a(n-1). 1
0, 1, 2, 4, 256 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
a[n]b is the square-bracket notation for n-th hyperoperation of a times b see A054871 for more info.
LINKS
EXAMPLE
a(0) = 0;
a(1) = a(0)[0]a(0) = 1;
a(2) = a(1)[1]a(1) = 1+1 = 2;
a(3) = a(2)[2]a(2) = 2*2 = 4;
a(4) = a(3)[3]a(3) = 4^4 = 256;
a(5) = a(4)[4]a(4) = 256^^256 = 256^256^....^256 (256 times).
CROSSREFS
Cf. A271552.
Sequence in context: A018770 A260755 A173566 * A058990 A343255 A262413
KEYWORD
nonn,bref
AUTHOR
Natan Arie Consigli, Apr 09 2016
STATUS
approved

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Last modified April 21 00:22 EDT 2024. Contains 371850 sequences. (Running on oeis4.)