A210604 Bisection of Recamán's sequence A005132.

0, 3, 2, 13, 12, 11, 10, 9, 8, 43, 42, 41, 42, 43, 44, 45, 46, 113, 114, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 157, 156, 155, 154, 153, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 367, 368, 369, 370, 151, 152

Offset

1,2

Comments

Also length of the horizontal edges of a rectangular polyspiral path. For the vertical edges see A210605. The mentioned polyspiral path is one of the three views of a rectangular polyhelix which is a three-dimensional graphical representation of Recamán's sequence A005132.

Links

Table of n, a(n) for n=1..57.

Index entries for sequences related to Recamán's sequence

Example

1) Written as an irregular array in which each row lists consecutive numbers in ascending order or in descending order:
0;
3,2;
13,12,11,10,9,8;
43,42,41;
42,43,44,45,46;
113,114;
39,38,37,36,35,34,33,32,31,30,29,28,27,26;
...
2) Written as an irregular array in which each row lists consecutive numbers in ascending order, in descending order or in descending-ascending order:
0;
3,2;
13,12,11,10,9,8;
43,42,41,42,43,44,45,46;
113,114;
39,38,37,36,35,34,33,32,31,30,29,28,27,26;
...

Crossrefs

Cf. A005132, A065056, A171175, A171178, A210605-A210607.

Sequence in context: A131050 A219374 A084416 * A005352 A095131 A060149

Adjacent sequences: A210601 A210602 A210603 * A210605 A210606 A210607

Keyword

nonn,tabf

Author

Omar E. Pol, Mar 23 2012

Status

approved