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A274463
Subsequence of the automorphic numbers (A003226) with initial term 5 and such that a(n+1) ends with the digits of a(n).
2
5, 25, 625, 12890625, 6259918212890625, 4106619977392256259918212890625, 80863811000557423423230896109004106619977392256259918212890625
OFFSET
1,1
COMMENTS
An automorphic number is a number whose square ends in the same digits as the number itself.
The next term has 126 digits.
LINKS
PROG
(PARI)
seq(m, maxn) = L=List(); for(j=1, maxn, listput(L, m); m=(3*m^2-2*m^3)%10 ^ (2*sizedigit(m))); Vec(L)
seq(5, 8)
CROSSREFS
Sequence in context: A215118 A218150 A176594 * A279835 A169652 A359232
KEYWORD
nonn,base
AUTHOR
Colin Barker, Jun 24 2016
STATUS
approved