A356426 Even bisection of A003278.

2, 5, 11, 14, 29, 32, 38, 41, 83, 86, 92, 95, 110, 113, 119, 122, 245, 248, 254, 257, 272, 275, 281, 284, 326, 329, 335, 338, 353, 356, 362, 365, 731, 734, 740, 743, 758, 761, 767, 770, 812, 815, 821, 824, 839, 842, 848, 851, 974, 977, 983, 986, 1001, 1004, 1010, 1013, 1055, 1058

Offset: 1

Author

Arie Bos, Aug 07 2022

Keywords

• nonn

Comments

Complement sequence of A191107 in A003278.

Crossrefs

Cf. A003278, A191107.

Programs

Python

def A356426(n): return int(bin((n<<1)-1)[2:],3)+1 # Chai Wah Wu, Sep 07 2022

Formula

a(n) = A003278(2n).