A352919 Indices k where k/A109812(k) reaches a new high point.

1, 4, 9, 16, 76, 162, 418, 1892, 19094, 19298, 20059, 84653, 174566, 1688099

Offset

1,2

Comments

The corresponding values of A109812(k) are given in A352920.

This is a subset of A352359.

Links

Table of n, a(n) for n=1..14.

Example

Let c(k) denote A109812(k). The first 14 record high-points of k/c(k) are as follows:
[k/c(k), k, c(k), "binary(c(n))"]
[1.000000000 1 1 "1"]
[1.333333333 4 3 "11"]
[1.500000000 9 6 "110"]
[2.285714286 16 7 "111"]
[2.451612903 76 31 "11111"]
[2.571428571 162 63 "111111"]
[3.291338583 418 127 "1111111"]
[3.702544031 1892 511 "111111111"]
[4.665037870 19094 4093 "111111111101"]
[4.713727406 19298 4094 "111111111110"]
[4.898412698 20059 4095 "111111111111"]
[5.167124458 84653 16383 "11111111111111"]
[5.327494125 174566 32767 "111111111111111"]
[6.439611205 1688099 262143 "111111111111111111"]
The values of k and c(k) form the present sequence and A352920.

Crossrefs

Cf. A109812, A113233, A352203, A352204, A352336, A352359, A352917-A352923.

Sequence in context: A296111 A038784 A038239 * A263094 A226354 A299921

Adjacent sequences: A352916 A352917 A352918 * A352920 A352921 A352922

Keyword

nonn,more

Author

David Broadhurst, Aug 17 2022 (entry created by N. J. A. Sloane, Apr 23 2022)

Status

approved