A374483 Record values in A347381, where A347381 is the distance from n to the nearest common ancestor of n and sigma(n) in the Doudna-tree (A005940).

0, 1, 3, 6, 7, 8, 10, 13, 15, 19, 20, 22, 24, 27, 30, 32, 34, 36, 39, 41, 45, 46, 50, 52, 55, 61, 67, 68, 70, 71, 74, 79, 82, 86, 87, 90, 94, 98, 103, 105, 106, 108, 111, 117, 121, 126, 134, 138, 144, 146, 149, 151, 162, 163, 169, 171, 174, 179, 189, 191, 192, 194, 200, 203, 204, 208, 212, 220, 221, 224, 226, 229, 231

Offset

1,3

Links

Antti Karttunen, Table of n, a(n) for n = 1..18144

Index entries for sequences related to sigma(n)

Formula

a(n) = A347381(A374482(n)).

Crossrefs

Cf. A005940, A347381, A374482.

Sequence in context: A266986 A047283 A155932 * A298980 A206586 A347878

Adjacent sequences: A374480 A374481 A374482 * A374484 A374485 A374486

Keyword

nonn

Author

Antti Karttunen, Jul 09 2024

Status

approved