A380388 Primes q for which A177436(pi(q)) is not equal to 2*(1 + floor(log_2(q/(2^ceiling(log_2(q))-q)))).

3, 5, 11, 13, 17, 19, 43, 67, 103, 131, 241, 257, 683, 2731, 4099, 32771, 43691, 61681, 65537, 65539, 174763, 262147, 2796203, 6710887, 15790321

Offset

1,1

Links

Table of n, a(n) for n=1..25.

Vladimir Shevelev, Compact integers and factorials, Acta Arithmetica 126 (2007), no. 3, 195-236. See p. 231.

Crossrefs

Cf. A177436.

Sequence in context: A076757 A178942 A045404 * A154500 A152460 A130097

Adjacent sequences: A380384 A380385 A380386 * A380389 A380390 A380391

Keyword

nonn,more

Author

Michel Marcus, Jan 23 2025

Status

approved