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A116944
a(1) = 1; for n>1, a(n)=(a(n-1)+1)^n.
0
1, 4, 125, 252047376, 1017210679182495207444253709079169646680657
OFFSET
1,2
COMMENTS
There was a conjecture that this recurrence would produce the sequence A068894, but this is not the case.
The next term -- a(6) -- has 253 digits. [From Harvey P. Dale, Jan 17 2012]
MATHEMATICA
RecurrenceTable[{a[1]==1, a[n]==(a[n-1]+1)^n}, a, {n, 6}] (* Harvey P. Dale, Jan 17 2012 *)
CROSSREFS
Sequence in context: A354549 A286017 A068894 * A124260 A253099 A178842
KEYWORD
nonn
AUTHOR
Vim Wenders, Apr 18 2008
STATUS
approved