A218544 a(n) = A218784(n)+1.

1, 2, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 17, 19, 23, 24, 26, 28, 31, 32, 34, 35, 36, 39, 40, 41, 43, 45, 48, 49, 51, 52, 53, 57, 59, 60, 66, 68, 70, 71, 73, 75, 78, 79, 81, 82, 83, 87, 89, 90, 96, 98, 99, 100, 102, 103, 109, 112, 115, 120, 122, 123, 124, 125

Offset: 0

Author

Antti Karttunen, Nov 02 2012

Keywords

• nonn

Comments

These terms are one more than the positions where the infinite trunk of beanstalk (A179016) changes its branching direction, i.e. where its parity changes.

Links

• Antti Karttunen, Table of n, a(n) for n = 0..8649

Crossrefs

Cf. A179016, A213729, A218545, A218546, A218617, A218784.

Programs

Scheme

(define (A218544 n) (1+ (A218784 n)))

Formula

a(1)=1 and in the later terms i occurs whenever A213729(i) differs from A213729(i-1).

Extensions

Offset and definition changed because of the changed starting offset of A213729. - Antti Karttunen, Nov 11 2012