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

Author

Olivier Gérard, Jan 28 2023

Keywords

• easy
• nonn

Comments

Other simple classes of endofunctions are counted by this sequence.

Examples

			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.
		

Crossrefs

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

Programs

Mathematica

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