A354537 Numbers k that are not Mersenne primes (A000668) such that 2*k is in A354525.

1, 511, 147573952589676412927, 174224571863520493293247799005065324265471

Offset

1,2

Comments

Terms in A354536 that are not Mersenne primes. Note that all Mersenne primes are in A354536.

a(5) = 2^727 - 1 is too large to include here. - Jinyuan Wang, Jan 21 2025

Links

Table of n, a(n) for n=1..4.

Formula

By definition, equals A354536 \ A000668.

a(n) = 2^A354532(n) - 1 = A354534(n)/2.

Example

See A354532.

Prog

(PARI) lista(nn, {lim=256}, {lim_p=1<<32}) = for(n=1, nn, if(isA354532(n, lim, lim_p), print1(2^n-1, ", "))) \\ See A354532 for the function isA354532

Crossrefs

Cf. A000668, A354525, A354532, A354534, A354536.

Sequence in context: A217915 A263167 A139303 * A035884 A035596 A095843

Adjacent sequences: A354534 A354535 A354536 * A354538 A354539 A354540

Keyword

nonn,hard

Author

Jianing Song, Aug 17 2022

Status

approved