A171433 n-th half of even single (or even isolated) numbers plus n-th half of even non-single (or even nonisolated) numbers.

1, 6, 8, 13, 17, 25, 32, 42, 49, 65, 70, 86, 93, 109, 116, 121, 137, 144, 160, 167, 183, 202, 239, 247, 263, 294, 319, 335, 346, 359, 369, 445, 452, 456, 472, 485, 555, 562, 572, 579, 595, 626, 667, 692, 700, 707, 717, 772, 785, 801, 805, 866, 873, 898, 914

Offset

1,2

Links

Table of n, a(n) for n=1..55.

Formula

a(n)=A168497(n)+A168044(n).

Example

a(1)=1+0=1, a(2)=2+4=6, a(3)=3+5=8.

Crossrefs

Cf. A167706(the single or isolated numbers), A167707(the non-single or nonisolatred numbers), A168044, A168497.

Sequence in context: A315874 A315875 A315876 * A190546 A190558 A063188

Adjacent sequences: A171430 A171431 A171432 * A171434 A171435 A171436

Keyword

nonn

Author

Juri-Stepan Gerasimov, Dec 09 2009

Extensions

Entries checked by R. J. Mathar, May 23 2010

Status

approved