A135384 Numbers which converge to 2592 under repeated application of the powertrain map of A133500.

642, 2164, 2534, 2592, 3425, 6421, 9225, 10642, 11642, 12642, 13642, 14642, 15642, 16642, 17642, 18642, 19642, 20642, 21636, 21641, 22348, 22633, 22928, 23344, 23629, 23924, 24336, 24342, 24922, 25329, 25333, 25341, 25919, 25921, 30642, 31634, 32259

Offset: 1

Author

J. H. Conway and N. J. A. Sloane, Dec 10 2007

Keywords

• nonn
• base

Comments

Many of these numbers reach 2592 in one step. Examples of numbers which take more than one step are 45756, 52648, 63724, 64528, 72634, 75456.

Links

• N. J. A. Sloane, Table of n, a(n) for n = 1..169

Crossrefs

Cf. A133500, A135385.

Programs

Python

# aupto in A326735
print(aupto(32259, target=2592)) # Michael S. Branicky, Feb 21 2021