A063699 Positions of negative coefficients in cyclotomic polynomial Phi_n(x), A063698 in binary.

0, 1, 0, 0, 0, 0, 10, 0, 0, 0, 1010, 0, 100, 0, 101010, 10010010, 0, 0, 1000, 0, 1000100, 100100010010, 1010101010, 0, 10000, 0, 101010101010, 0, 10001000100, 0, 111000, 0, 0, 10010010010010010010, 1010101010101010, 100001010010100101000010

Offset: 0

Author

Antti Karttunen, Aug 03 2001

Keywords

• nonn
• base

Examples

			E.g. Phi_15(x) = x^8 - x^7 + x^5 - x^4 + x^3 - x + 1, thus the 1-bits of a(15) are at positions 1,4 and 7, thus we get a(15) = 10010010
		

Links

• Index entries for cyclotomic polynomials, positions of coefficients

Crossrefs

Cf. A063697, A063671, A063672.

Programs

Maple

map(convert, A063698,binary);