A176575 Second edge diagonal of table A176577. (The first edge diagonal is A099627).

1, 10, 36, 42, 136, 146, 170, 292, 528, 546, 586, 682, 1092, 1170, 2080, 2114, 2184, 2186, 2340, 2346, 2730, 4228, 4370, 4706, 8256, 8322, 8456, 8458, 8738, 8740, 8746, 9362, 9386, 10922, 16644, 16912, 16914, 17476, 17482, 18724, 18730, 32896, 33026

Offset

1,2

Comments

Sequence A176575 can be useful in reconstructing table A176577.

Consider, for example, diagonal 10 18 21 34 37 43 66 69 75 ...

the highest power of two less than 10 is 8 and 10-8 is 2 (the "residual").

Construct the sequence 10,18,34,66,... by doubling each term and subtracting

the residual. The remaining terms are formed by using the rule "2x+1":

10..18..34..66..

21..37..69..

43..75..

87..

Links

Table of n, a(n) for n=1..43.

Example

A176577 begins
1
2...10
3...18...36
4...21...68...42
5...34...73...74..136
7...37..132...85..264..146
so a(n) begins:
1..10..36..42..136..146..

Crossrefs

Cf. A099627 A176577

Sequence in context: A125550 A343155 A223305 * A073613 A346386 A117404

Adjacent sequences: A176572 A176573 A176574 * A176576 A176577 A176578

Keyword

nonn,uned

Author

Alford Arnold, May 13 2010

Status

approved