OFFSET
1,1
COMMENTS
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..1000
Rémy Sigrist, PARI program for A309123
FORMULA
a(1) = 50 and then a(n+1) = A018796(a(n)) for n > 0.
EXAMPLE
The first terms, alongside the square of a(n+1), are:
n a(n) a(n+1)^2
-- ---- --------
1 50 5041
2 71 71289
3 267 267289
4 517 5171076
5 2274 2274064
6 1508 15085456
7 3884 3884841
8 1971 197136
9 444 444889
10 667 667489
11 817 81796
12 286 286225
13 535 535824
14 732 732736
15 856 8561476
16 2926 292681
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Rémy Sigrist, Jul 13 2019
STATUS
approved