A217019 - OEIS

%I #17 Nov 27 2020 04:50:39

%S 2,6,8,23,16,34,24,50,89,36,115,80,49,101,149,190,58,202,140,79,231,

%T 159,270,371,193,103,216,113,212,804,260,391,151,667,148,431,472,318,

%U 486,507,153,870,169,365,185,1145,1214,405,207,434,614,218,1135,703,721

%N First differences of A128301.

%C The sequence is of chaotic behavior and unbound. Exactly as in A050216 (see comment by T. D. Noe over there), the lines in the graph correspond to prime gaps of 2, 4, 6,...

%H Zak Seidov, <a href="/A217019/b217019.txt">Table of n, a(n) for n = 1..10000</a>

%F a(n) = A165144(n) + 1. - _Flávio V. Fernandes_, Nov 19 2020

%Y Cf. A000879, A050216, A128301, A165144.

%Y Cf. A001248 (primes squared), A001358 (semiprimes).

%K nonn

%O 1,1

%A _Zak Seidov_, Sep 24 2012