OFFSET
0,3
COMMENTS
As a flat sequence, this is a permutation of the nonnegative integers with inverse A379262.
LINKS
Rémy Sigrist, Table of n, a(n) for n = 0..10922
Rémy Sigrist, PARI program
EXAMPLE
Triangle T(n, k) begins:
n n-th row
-- ------------------------------
0 0
1 1
2 2
3 3, 4
4 5
5 6, 7, 8
6 9
7 10
8 11, 12, 14, 15, 16
9 13, 17
10 18
11 19, 20
12 21
13 22, 23, 24, 27, 28, 30, 31, 32
14 25, 29, 33
15 26, 34
PROG
(PARI) \\ See Links section.
CROSSREFS
KEYWORD
nonn,tabf,base
AUTHOR
Rémy Sigrist, Dec 19 2024
STATUS
approved
