OFFSET
0,3
COMMENTS
The unique infinite sequence such that a(0) = 0, a(n) = A276085(a(n+1)) for n >= 0, and A129251(a(n)) = 0 for n >= 1, i.e., all nonzero terms must be in A048103.
a(10) is 240 decimal digits long (can be found in b-file), and a(11) is too big to fit even into a b-file as it is 32700 decimal digits long, but it can be found in the given a-file.
LINKS
Antti Karttunen, Table of n, a(n) for n = 0..10
Antti Karttunen, Terms a(0) .. a(11), without running index
FORMULA
a(0) = 0; and for n > 0, a(n) = A276086(a(n-1)).
MATHEMATICA
A276086[n0_] := Module[{m = 1, i = 1, n = n0, p}, While[n > 0, p = Prime[i]; m *= p^Mod[n, p]; n = Quotient[n, p]; i++]; m];
PROG
CROSSREFS
Cf. also A328313.
KEYWORD
nonn
AUTHOR
Antti Karttunen, Oct 14 2019
STATUS
approved