A090774 A permutation of the natural numbers related to sequence A079946.

1, 3, 6, 2, 13, 12, 7, 10, 25, 14, 5, 27, 20, 29, 24, 4, 21, 51, 22, 49, 26, 15, 18, 41, 59, 40, 53, 28, 11, 55, 36, 45, 99, 42, 57, 30, 9, 43, 103, 38, 81, 107, 44, 61, 48, 8, 37, 83, 119, 72, 85, 115, 46, 97, 50, 31, 34, 73, 91, 199, 74, 89, 123, 80, 101, 52, 23, 111, 68, 77

Offset

1,2

Comments

When viewed as a square array the first row begin with 1 6 12 14 24 ..., cf. A079946 and the second column is A090324.

Links

Table of n, a(n) for n=1..70.

Example

When viewed as a square array each column can be interpreted as a triangular array. Thus column two would become as illustrated below:
6
13 10
27 21 18
55 43 37 34

Crossrefs

Cf. A090324.

Sequence in context: A073807 A378524 A345671 * A147995 A351232 A372921

Adjacent sequences: A090771 A090772 A090773 * A090775 A090776 A090777

Keyword

nonn,tabl

Author

Alford Arnold, Feb 07 2004

Status

approved