A165479 a(n) = Least i in range [A165478(n),A165478(n+1)] for which abs(A165477(i)) gets the maximum value in that range.

43690, 131070, 174761, 262141, 305832, 393212, 436903, 524283, 567974, 655354, 699045, 786425, 830116, 917496, 961187, 1048567, 1092258, 1179638, 1223329, 1310709, 1354400, 1441780, 1485471, 1572851, 1616542, 1703922

Offset: 0

Author

Antti Karttunen, Sep 21 2009

Keywords

• nonn

Comments

The corresponding maximum values are 570,0,570,0,570,0,570,0,570,0,570,0,570,0,570,0,570,0,... (period 2 sequence). Note that also A165477(87380) = 570 (as 131071 is 4k+3 prime), and A165477(65535) = 285 = 570/2.

Formula

a(n) = floor(n/2)*131071 + (1+2*(n modulo 2))*43690