OFFSET
1,2
COMMENTS
The next term -- a(8) -- has 861 digits. Then a(9) equals zero, and any additional terms are indeterminate. - Harvey P. Dale, Jul 23 2020
MATHEMATICA
a[n_] := (Times @@ IntegerDigits[a[n - 1]])^(Times @@ IntegerDigits[a[n - 2]]); a[1] = 1; a[2] = 2; Table[a[n], {n, 1, 7}]
nxt[{a_, b_}]:={b, (Times@@IntegerDigits[b])^Times@@IntegerDigits[a]}; NestList[ nxt, {1, 2}, 7][[All, 1]] (* Harvey P. Dale, Jul 23 2020 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Joseph L. Pe, May 09 2002
EXTENSIONS
Edited by Robert G. Wilson v, May 14 2002
The next term is too large to include.
STATUS
approved