[seqfan] Re: Subtract if prime, else add

[Éric Angelini]

Lars, be blessed among the blessed!
I will submit this asap to the OEIS!

à+
É.
Catapulté de mon aPhone


> Le 6 août 2019 à 10:43, Lars Blomberg <larsl.blomberg at comhem.se> a écrit :
> 
> 
> Up to 10^6 the terms increase approximately linearly, no cycles are visible.
> The last terms are
> 3590238, 3590240, 3590242, 3590248, 3590251, 3590251, 3590257, 3590259, 3590261, 3590267, 3590270, 3590279, 3590285, 3590287, 3590289, 3590295, 3590298, 3590306, 3590312, 3590314, 3590316, 3590322, 3590326, 3590326, 3590332, 3590334, 3590336, 3590342, 3590346
> 
> Small values not encountered
> 2, 3, 6, 7, 13, 14, 19, 20, 24, 30, 31, 32, 33, 34, 35, 37, 39, 40, 41, 42, 43, 44, 46, 49, 51, 53, 55, 56, 57, 58, 59, 60, 61, 66, 67, 68, 69, 70, 75, 76, 77, 78, 79, 80, 81, 83, 85, 86, 87, 88, 89, 90, 91, 92, 100, 108, 109, 110, 113, 114, 115, 116, 117, 118
> (same as for 1000 terms)
> 
> /Lars
> 
> 
> 
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