OFFSET
0,3
COMMENTS
Different from A016134.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..1000
Wikipedia, Bijective numeration
Index entries for linear recurrences with constant coefficients, signature (10,1,-8,-17,-26,-35,-44,-53,-62,-81,-72,-63,-54,-45,-36,-27,-18,-9).
FORMULA
EXAMPLE
a(2) = 12 = 2 + 10 = 2_bij9 + 11_bij9.
MAPLE
b:= proc(n) option remember; `if`(n=0, [1, 0], add((p->
[p[1], p[2]*9+p[1]*d])(b(n-d)), d=1..min(n, 9)))
end:
a:= n-> b(n)[2]:
seq(a(n), n=0..23);
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Alois P. Heinz, Feb 19 2020
STATUS
approved