A379261 Irregular triangle T(n, k), n >= 0, k = 1..A379213(n), read by rows; the n-th row lists the nonnegative integers m such that A184615(m) = A003714(n).

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 13, 17, 18, 19, 20, 21, 22, 23, 24, 27, 28, 30, 31, 32, 25, 29, 33, 26, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 54, 55, 56, 59, 60, 62, 63, 64, 45, 49, 57, 61, 65, 50, 58, 66, 51, 52, 67, 68

Offset: 0

Author

Rémy Sigrist, Dec 19 2024

Keywords

• nonn
• tabf
• base

Comments

As a flat sequence, this is a permutation of the nonnegative integers with inverse A379262.

Examples

			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
		

Links

• Rémy Sigrist, Table of n, a(n) for n = 0..10922
• Rémy Sigrist, PARI program
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Cf. A003714, A184615, A379213, A379262 (inverse).

Programs

PARI

\\ See Links section.

Formula

T(n, A379213(n)) = A003714(n).