A385533 Third prepended column of the tribonacci array of the second kind, A385436.

-1, -1, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15, 16, 16, 17, 17, 17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 21, 21, 21, 22, 22, 22, 23, 23, 24, 24, 24

Offset: 1

Author

A.H.M. Smeets, Jul 02 2025

Keywords

• sign

Comments

The numbers that occur thrice in this sequence are given by A353084(n)-1, i.e., the first prepended column of the tribonacci array of the first kind minus one.

Links

• A.H.M. Smeets, Table of n, a(n) for n = 1..20000

Crossrefs

Cf. A353084, A385436.