OFFSET
0,3
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..10000
Wikipedia, Quaternary numeral system
EXAMPLE
0
1
2
3
10
11
12
13
20
21
22
23
30
31
32
33
100
...
The upward-sloping diagonals are:
0
1
2
13
10
11
12
23
20
21
22
33
30
31
132
103
100
...
giving 0, 1, 2, "7", 4, 5, 6, "11", 8, 9, 10, "15", 12, 13, "30", "19", 16, ...
PROG
(Ruby)
def A(m, n)
ary = [0]
n.times{|i|
(m ** i - i..m ** (i + 1) - i - 2).each{|j|
ary << (0..i).inject(0){|s, k| s + (j + k).to_s(m)[-1 - k].to_i * m ** k}
}
}
ary
end
p A(4, 4)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Seiichi Manyama, Sep 07 2019
STATUS
approved