A140951 Based on Jacobsthal numbers. Increasing order of different positive terms of A140950.

1, 3, 5, 6, 10, 11, 12, 20, 21, 22, 24, 40, 42, 43, 44, 48, 80, 84, 85, 86, 88, 96, 160, 168, 170, 171, 172, 176, 192, 320, 336, 340, 341, 342, 344, 352, 384, 640

Offset

0,2

Comments

Two possibilities of triangle on line. 1) From 1: 1; 3, 5; 6, 10, 11; 12, 20, 21, 22; 24, 40, 42, 43, 44; . 2) After 1: 3; 5, 6; 10, 11, 12; 20, 21, 22, 24; .

Links

Table of n, a(n) for n=0..37.

Formula

Also A140642 (1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 16, 20) without A000079(n+1). Note position of A001045(n+2) terms: 0, 1, 2, 5, 8, 13 =A000982. See A140503 square .

Crossrefs

Sequence in context: A065512 A066147 A175304 * A190243 A187127 A187126

Adjacent sequences: A140948 A140949 A140950 * A140952 A140953 A140954

Keyword

nonn,uned

Author

Paul Curtz, Jul 25 2008

Status

approved