A309202 Peter Munn showed in A111273 that if A111273(n)=m then if m is odd, n <= m, and if m is even, n <= 2*m-1; a(n) is either m-n or 2*m-1-n in the two cases.

0, 1, 0, 1, 10, 1, 0, 3, 0, 1, 32, 1, 78, 7, 0, 1, 34, 1, 0, 7, 12, 1, 0, 15, 0, 1, 8, 1, 58, 1, 0, 15, 154, 1, 24, 1, 666, 1, 12, 1, 82, 1, 128, 1, 24, 1, 140, 7, 0, 25, 16, 1, 106, 1, 32, 19, 0, 1, 176, 1, 1830, 1, 0, 15, 0, 1, 200, 23, 36, 1, 0, 1, 2628, 37, 24, 1, 66, 1, 236, 27, 0, 1, 0, 55, 0, 43

Offset

1,5

Comments

It is known that if p is an odd prime, a(p-1) = 1 (see A111273).

Links

Table of n, a(n) for n=1..86.

Crossrefs

Cf. A111273.

Sequence in context: A068159 A108695 A265373 * A105031 A307978 A367614

Adjacent sequences: A309199 A309200 A309201 * A309203 A309204 A309205

Keyword

nonn

Author

N. J. A. Sloane, Jul 26 2019

Status

approved