A291767 Odd bisection of A291761.

1, 3, 3, 3, 7, 3, 3, 9, 3, 3, 9, 3, 7, 12, 3, 3, 9, 9, 3, 9, 3, 3, 16, 3, 7, 9, 3, 9, 9, 3, 3, 16, 9, 3, 9, 3, 3, 16, 9, 3, 21, 3, 9, 9, 3, 9, 9, 9, 3, 16, 3, 3, 23, 3, 3, 9, 3, 9, 16, 9, 7, 9, 12, 3, 9, 3, 9, 26, 3, 3, 9, 9, 9, 16, 3, 3, 16, 9, 3, 9, 9, 3, 23, 3, 7, 16, 3, 16, 9, 3, 3, 9, 9, 9, 26, 3, 3, 23, 3, 3, 9, 9, 9, 16, 9

Offset: 1

Author

Antti Karttunen, Sep 11 2017

Keywords

• nonn

Comments

Records occur at positions: 1, 2, 5, 8, 14, 23, 41, 53, 68, 113, 122, 158, 203, 338, 365, ... (= (A147516(n)+1)/2) that give also all distinct values in this sequence: 1, 3, 7, 9, 12, 16, 21, 23, 26, 32, 34, 37, 40, 46, 48, 53, 58, 59, 64, 69, 72, 77, 81, ... Note that the terms of A291768 are all from the complementary sequence: 2, 4, 5, 6, 8, 10, 11, 13, 14, 15, 17, ...

Links

• Antti Karttunen, Table of n, a(n) for n = 1..16385

Crossrefs

Cf. A147516, A278223, A291761, A291768.

Programs

Scheme

(define (A291767 n) (A291761 (+ n n -1)))

Formula

a(n) = A291761(2n - 1).