A309063 Numbers k such that, when computing A247476(k), all previous terms have been paired.

1, 27, 33, 39, 115, 129, 141, 147, 153, 159, 165, 171, 177, 183, 189, 195, 201, 207, 213, 219, 225, 231, 237, 243, 249, 255, 261, 267, 979, 1017, 1297, 1303, 1309, 1315, 1321, 1327, 1333, 1339, 1345, 1351, 1357, 1363, 1369, 1375, 1381, 1387, 1393, 1399, 1405

Offset

1,2

Comments

Apparently, the first difference of this sequence is unbounded.

Links

Table of n, a(n) for n=1..49.

Rémy Sigrist, Illustration of first terms

Rémy Sigrist, C program for A309063

Example

See illustration of first terms in Links section.

Prog

(C) See Links section.

Crossrefs

Cf. A247476.

Sequence in context: A025322 A151742 A304243 * A088499 A058902 A342844

Adjacent sequences: A309060 A309061 A309062 * A309064 A309065 A309066

Keyword

nonn,base

Author

Rémy Sigrist, Jul 10 2019

Status

approved