cp's OEIS Frontend

A327488 T(n, k) = 1 + NAND(k - 1, n - k), where NAND is the Sheffer stroke operating bitwise on the inputs, triangle read by rows, T(n, k) for n >= 1, 1 <= k <= n.

%I A327488 #9 Sep 22 2019 07:17:09
%S A327488 1,2,2,4,1,4,4,4,4,4,8,3,2,3,8,8,8,2,2,8,8,8,7,8,1,8,7,8,8,8,8,8,8,8,
%T A327488 8,8,16,7,6,7,4,7,6,7,16,16,16,6,6,4,4,6,6,16,16,16,15,16,5,4,3,4,5,
%U A327488 16,15,16,16,16,16,16,4,4,4,4,16,16,16,16
%N A327488 T(n, k) = 1 + NAND(k - 1, n - k), where NAND is the Sheffer stroke operating bitwise on the inputs, triangle read by rows, T(n, k) for n >= 1, 1 <= k <= n.
%e A327488                                1
%e A327488                               2, 2
%e A327488                             4, 1, 4
%e A327488                            4, 4, 4, 4
%e A327488                          8, 3, 2, 3, 8
%e A327488                         8, 8, 2, 2, 8, 8
%e A327488                       8, 7, 8, 1, 8, 7, 8
%e A327488                      8, 8, 8, 8, 8, 8, 8, 8
%e A327488                   16, 7, 6, 7, 4, 7, 6, 7, 16
%e A327488                 16, 16, 6, 6, 4, 4, 6, 6, 16, 16
%e A327488              16, 15, 16, 5, 4, 3, 4, 5, 16, 15, 16
%e A327488            16, 16, 16, 16, 4, 4, 4, 4, 16, 16, 16, 16
%e A327488         16, 15, 14, 15, 16, 3, 2, 3, 16, 15, 14, 15, 16
%e A327488       16, 16, 14, 14, 16, 16, 2, 2, 16, 16, 14, 14, 16, 16
%e A327488    16, 15, 16, 13, 16, 15, 16, 1, 16, 15, 16, 13, 16, 15, 16
%e A327488 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16
%p A327488 A327488 := (n, k) -> 1 + Bits:-Nand(k-1, n-k):
%p A327488 seq(seq(A327488(n, k), k=1..n), n=1..12);
%Y A327488 Cf. A327489 (Nor), A327490 (Iff), A280172 (Xor).
%K A327488 nonn,tabl
%O A327488 1,2
%A A327488 _Peter Luschny_, Sep 22 2019