A381610 Irregular table T(n, k), n >= 0, k = 1..A381609(n), read by rows: the n-th row lists the numbers m such that A381607(m) = n.

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 27, 24, 28, 25, 29, 26, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 54, 51, 55, 52, 56, 53, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67

Offset

0,3

Comments

As a flat sequence, this is a permutation of the nonnegative integers with inverse A381611.

Links

Rémy Sigrist, Table of n, a(n) for n = 0..4693 (rows for n = 0..3^7 flattened)

Rémy Sigrist, PARI program

Index entries for sequences that are permutations of the natural numbers

Example

Table T(n, k) begins:
  n   n-th row
  --  --------
   0  0
   1  1
   2  2
   3  3
   4  4
   5  5
   6  6
   7  7
   8  8, 9
   9  10
  10  11
  11  12
  12  13
  13  14
  14  15
  15  16
  16  17, 18
  17  19
  18  20
  19  21
  20  22

Prog

(PARI) \\ See Links section.

Crossrefs

Cf. A381607, A381609, A381611 (inverse).

Sequence in context: A381611 A335280 A335282 * A370133 A351576 A132264

Adjacent sequences: A381607 A381608 A381609 * A381611 A381612 A381613

Keyword

nonn,base,tabf

Author

Rémy Sigrist, Mar 01 2025

Status

approved