A323463 Values of n at which A323454 reaches a new record.

1, 2, 3, 99, 369, 999, 1999, 9879

Offset

1,2

Comments

The corresponding numbers of steps are 0, 1, 11, 12, 13, 14, 15, 16.

Links

Table of n, a(n) for n=1..8.

Eric Angelini, Lars Blomberg, Charlie Neder, Remy Sigrist, and N. J. A. Sloane, "Choix de Bruxelles": A New Operation on Positive Integers, arXiv:1902.01444, Feb 2019; Fib. Quart. 57:3 (2019), 195-200.

Example

a(4)=99 refers to the fact that it takes 12 steps to reach 99 from 1 using the Choix de Bruxelles (version 2) operation, and all numbers less than 99 (and not ending in 0 or 5) can be reached from 1 in fewer than 12 steps.

Crossrefs

Cf. A323286, A343460, A323454.

Sequence in context: A199541 A208205 A128931 * A212556 A171460 A371120

Adjacent sequences: A323460 A323461 A323462 * A323464 A323465 A323466

Keyword

nonn,base,more

Author

N. J. A. Sloane, Jan 23 2019

Status

approved