A272759 -id:A272759 - cp's OEIS frontend

A272760 a(n) = A065880(n)/n.

1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 5, 2, 0, 3, 4, 1, 2, 2, 0, 2, 6, 5, 5, 2, 0, 0, 4, 3, 4, 4, 5, 1, 2, 2, 0, 2, 6, 0, 4, 2, 6, 6, 4, 5, 4, 5, 0, 2, 0, 0, 4, 0, 6, 4, 0, 3, 5, 4, 5, 4, 6, 5, 6, 1, 2, 2, 0, 2, 6, 0, 5, 2, 6, 6, 4, 0, 6, 4, 6, 2, 6, 6, 6, 6, 5, 4, 3

Offset: 1

Peter Kagey, May 05 2016

This sequence is bounded above by A272756.

a(n) is the greatest value i such that A000120(n * i) = i or 0 if no such value exists.

Peter Kagey, Table of n, a(n) for n = 1..10000

Cf. A065880, A272756, A272759.

Table[SelectFirst[Reverse@ Range@ #, First@ DigitCount[#, 2] == #/n &] &[n SelectFirst[Range[2^12], # > IntegerLength[n #, 2] &]]/n, {n, 120}] /. k_ /; MissingQ@ k -> 0 (* Michael De Vlieger, May 05 2016, Version 10.2 *)

A272761 List of indices i such that A065879(i) != A065880(i).

Original entry on oeis.org

23, 27, 37, 41, 46, 53, 54, 57, 69, 71, 74, 77, 79, 81, 82, 83, 85, 89, 91, 92, 101, 105, 106, 107, 108, 113, 114, 121, 125, 133, 135, 138, 139, 141, 142, 143, 147, 148, 153, 154, 158, 161, 162, 163, 164, 166, 167, 169, 170, 173, 177, 178, 181, 182, 184, 197

Offset: 1

Peter Kagey, May 06 2016

Equivalently a list of indices i such that A272759(i) != A272760(i).

Also, a list of indices i such that A065413(i) > 1.

Peter Kagey, Table of n, a(n) for n = 1..10000

Cf. A065879, A065880, A065413, A272759, A272760.

cp's OEIS Frontend

A272760 a(n) = A065880(n)/n.

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