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A353107
Base-9 representation of A007908(n).
5
1, 13, 146, 1621, 17836, 207313, 2281451, 25206070, 277266780, 34771513601, 4330564256733, 535110486286816, 65858371163036861, 8202185121837583406, 1113465620754570813253, 134741562223525280514741, 16425841240157671153405780
OFFSET
1,2
LINKS
FORMULA
a(n) = A007095(A007908(n)).
PROG
(Ruby)
def A(k, n)
(1..n).map{|i| (1..i).to_a.join.to_i.to_s(k).to_i}
end
p A(9, 20)
KEYWORD
nonn,base
AUTHOR
Seiichi Manyama, Apr 23 2022
STATUS
approved