cp's OEIS Frontend

A118578 Numbers n such that A118799(n) = 0.

%I A118578 #10 Mar 30 2012 18:40:37
%S A118578 21,25,29,80,1718,4157,4158,5841,20376,23719,28100,28101,28232,32407,
%T A118578 32411,45826,49771,56821,58210,59013,62808,63090,63367,65700,66199,
%U A118578 71054,82094,83507,86948,94928,95585,99154,101974,126918,126922,127947
%N A118578 Numbers n such that A118799(n) = 0.
%F A118578 n such that the following matrix is singular:
%F A118578 |prime(n)    prime(n+1)  prime(n+2)  prime(n+3) |
%F A118578 |prime(n+4)  prime(n+5)  prime(n+6)  prime(n+7) |
%F A118578 |prime(n+8)  prime(n+9)  prime(n+10) prime(n+11)|
%F A118578 |prime(n+12) prime(n+13) prime(n+14) prime(n+15)|
%e A118578 a(1) = 21 because A118799(21) = 0 because of the singular matrix:
%e A118578 | 73  79  83  89|
%e A118578 | 97 101 103 107|
%e A118578 |109 113 127 131|
%e A118578 |137 139 149 151|.
%e A118578 a(4) = 80 because A118799(80) = 0 because of the singular matrix:
%e A118578 |409 419 421 431|
%e A118578 |433 439 443 449|
%e A118578 |457 461 463 467|
%e A118578 |479 487 491 499|.
%Y A118578 Cf. A000040, A118799.
%K A118578 nonn
%O A118578 1,1
%A A118578 _Jonathan Vos Post_, May 24 2006
%E A118578 More terms from Max Alekseyev, Sep 24 2011