A360172 Sequences of length n in [n] not starting with their minimum value.

0, 1, 13, 156, 2146, 34455, 638723, 13479760, 319689156, 8425695015, 244459904085, 7745416087332, 266155064108662, 9860698167427471, 391859875043125895

Offset

1,3

Comments

Other simple classes of endofunctions are counted by this sequence.

Links

Table of n, a(n) for n=1..15.

Example

The 13 sequences not starting with their minimum value for n=3 are
  211, 212, 213, 221, 231, 311, 312, 313, 321, 331, 322, 323, 332.

Mathematica

Table[n^n - Plus @@ Table[i^(n - 1), {i, 1, n}], {n, 1, 15}]

Crossrefs

A076015(n) + A360172(n) = A000312(n).

Sequence in context: A170646 A170694 A170732 * A250210 A142104 A140020

Adjacent sequences: A360169 A360170 A360171 * A360173 A360174 A360175

Keyword

easy,nonn

Author

Olivier Gérard, Jan 28 2023

Status

approved