A234648 Even sums of 2 consecutive odious numbers (A000069).

6, 24, 30, 40, 54, 72, 86, 96, 102, 120, 126, 136, 150, 160, 166, 184, 198, 216, 222, 232, 246, 264, 278, 288, 294, 312, 326, 344, 350, 360, 374, 384, 390, 408, 414, 424, 438, 456, 470, 480, 486, 504, 510, 520, 534, 544, 550, 568, 582, 600, 606, 616, 630

Offset: 1

Author

Gerasimov Sergey, Dec 29 2013

Keywords

• nonn
• base

Comments

All the terms in this sequence are evil numbers (A001969).

Links

• Amiram Eldar, Table of n, a(n) for n = 1..10000

Crossrefs

Intersection of A005843 and A234011.

Cf. A000069, A001969, A036554, A131323, A225822.

Programs

Mathematica

odQ[n_] := OddQ @ DigitCount[n, 2, 1]; Select[Plus @@@ Partition[Select[ Range[320], odQ], 2, 1], EvenQ] (* Amiram Eldar, Aug 31 2020 *)

Formula

a(n) = A234011(A036554(n)) = A225822(n) + (-1)^n.