A297153 Reversing binary representation of A083254(n), 2*phi(n) - n.

1, 0, 1, 0, 7, 6, 13, 0, 7, 6, 25, 12, 31, 6, 1, 0, 19, 10, 49, 12, 7, 6, 61, 24, 19, 6, 25, 12, 47, 18, 37, 0, 11, 6, 21, 20, 103, 6, 25, 24, 107, 54, 121, 12, 7, 6, 117, 48, 103, 30, 21, 12, 87, 54, 41, 24, 19, 6, 73, 36, 79, 6, 25, 0, 35, 46, 193, 12, 55, 58, 205, 40, 203, 6, 13, 12, 127, 34, 213, 48, 47, 6, 241

Offset

1,5

Links

Antti Karttunen, Table of n, a(n) for n = 1..16384

Formula

If A083254(n) > 0, then a(n) = A065621(A083254(n)), otherwise a(n) = A048724(-A083254(n)).

For all n >= 1, A065620(a(n)) = A083254(n)

Prog

(Scheme) (define (A297153 n) (let ((x (A083254 n))) (if (> x 0) (A065621 x) (A048724 (- x)))))

Crossrefs

Cf. A000010, A048724, A065620, A065621, A083254.

Cf. also A297154, A295881.

Sequence in context: A309622 A215338 A176414 * A363325 A259168 A309624

Adjacent sequences: A297150 A297151 A297152 * A297154 A297155 A297156

Keyword

nonn

Author

Antti Karttunen, Dec 26 2017

Status

approved