A328428 Numbers that appear twice consecutively in the Van Eck Sequence, in order of appearance.

0, 2, 3, 8, 4, 4, 4, 6, 4, 3, 4, 3, 6, 6, 4, 9, 3, 5, 4, 2, 4, 4, 4, 4, 4, 4, 6, 4, 7, 3, 4, 2, 4, 4, 6, 64, 4, 4, 5, 5, 7, 4, 4, 6, 4, 100, 25, 4, 5, 4, 5, 6, 4, 17, 4, 6, 7, 6, 139, 5, 3, 4, 5, 5, 4, 4, 8, 4, 9, 5, 5, 17, 21, 5, 6, 4, 5, 4, 5, 7, 4, 5, 4, 4, 5, 7, 6, 5, 5, 5, 5, 6, 2, 4, 9, 5, 4, 20, 5, 4, 5

Offset

1,2

Comments

Each number appears twice consecutively in A181391.

Links

Table of n, a(n) for n=1..101.

Example

The first number is zero because in A181391 the first two numbers are 0, 0.

Crossrefs

Cf. A181391.

Sequence in context: A079555 A100870 A210688 * A195794 A145605 A275708

Adjacent sequences: A328425 A328426 A328427 * A328429 A328430 A328431

Keyword

nonn

Author

Chandler W. Gloyd, Oct 15 2019

Status

approved