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

Author

Omar E. Pol, Mar 23 2012

Keywords

• nonn
• tabf

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.

Examples

			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;
...
		

Links

• Index entries for sequences related to Recamán's sequence

Crossrefs

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