A026362 a(n) = a(m) if a(m) has already occurred exactly once and n = a(m)+2m-1, else a(n) = least positive integer that has not yet occurred.

1, 1, 2, 3, 4, 5, 2, 6, 7, 3, 8, 9, 4, 10, 11, 5, 12, 13, 14, 15, 6, 16, 17, 7, 18, 19, 20, 21, 8, 22, 23, 9, 24, 25, 26, 27, 10, 28, 29, 11, 30, 31, 32, 33, 12, 34, 35, 13, 36, 37, 14, 38, 39, 15, 40, 41, 42, 43, 16, 44, 45, 17, 46, 47, 48, 49, 18

Offset

1,3

Links

Table of n, a(n) for n=1..67.

Crossrefs

Sequence in context: A143120 A353277 A308201 * A223490 A354749 A244734

Adjacent sequences: A026359 A026360 A026361 * A026363 A026364 A026365

Keyword

nonn

Author

Clark Kimberling

Status

approved