Metadata
bibkey: alkan2020a335901
authors: Altug Alkan
year: 2020
title: "OEIS A335901, a(n) = 2*a(floor((n-1)/a(n-1))) with a(1) = 1"
doi: null
url: https://oeis.org/A335901
claim: "A335901 %N: a(n) = 2*a(floor((n-1)/a(n-1))) with a(1) = 1. A335901 %C: Least k such that a(k) = 2^n are 1, 2, 5, 21, 169, 2705, ... (Conjecture: This sequence is A117261). - _Altug Alkan_, Jun 29 2020"
strata_touched:
- D5/S1/Recurrence/Invariants/SelfReferentialDoublingFirstOccurrence
license: citation-only
triage: anchor
OEIS A335901
The entry defines the self-referential doubling recurrence at positive indices and records the conjecture that the first indices carrying powers of two are the terms of A117261.
Verified locator
- URL: https://oeis.org/A335901
- Locator: COMMENTS, “Least k such that a(k) = 2^n are 1, 2, 5, 21, 169, 2705, … (Conjecture: This sequence is A117261).”