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https://t.co/IfOgQNJxeA
If you are into bit-twiddling, this one is pretty neat and probably provable:
A292531
a(n) = 0 if n is a power of 2. Otherwise, product of 2 numbers nearest n that have more 2's in their prime factorization than n.
Is a(n)=and(n²-1, n²) ?
So far, the majority of the ~2k posted conjectures are for OEIS entries without a formula field. There are approximately 22k more of this type queued up, but it appears that the bot has been suspended by twitter's new policy... I will resort to some manual postings until fixed.
Coordination sequence Gal.6.625.4 where G.u.t.v denotes the coordination sequence for a vertex of type v in tiling number t in the Galebach list of u-uniform tilings. https://t.co/eRC50WSv7z
Is a(n)=abs(A008592(n)-A314752(n))?
https://t.co/RDxFdsRUfJ
Number of (w,x,y,z) with all terms in {1,...,n} and w^2>=x^2+y^2+z^2. https://t.co/V9HHLJE0DM
Is a(n)=A212094(n)+A212091(n)?
https://t.co/E4sehd7J4O
Coordination sequence Gal.5.120.5 where G.u.t.v denotes the coordination sequence for a vertex of type v in tiling number t in the Galebach list of u-uniform tilings. https://t.co/8AxEwGynbC
Is a(n)=A316002(n)+A316019(n)-A316049(n)?
https://t.co/ed8eoTzfkb
Numbers such that the greatest prime divisor is less than the product of the other distinct prime divisors. https://t.co/mh077xhhrC
Is a(n)=lt[rad(n+1), A051119(A007947(n+1))²]+1?
https://t.co/Z6NUUvxODR
Fixed point of the morphism 1 -> 131, 2 -> 312, 3 -> 2. https://t.co/GEOcLv8Ux8
Is a(n)=xor(1, Δ[A064437(A008619(n))])?
https://t.co/GijgnBYjC8
Number of active (ON,black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 126", based on the 5-celled von Neumann neighborhood. https://t.co/m64JdVR4EQ
Is a(n)=A270216(n-1)+a(n-1)?
https://t.co/m2kBBIAM9i