A348166 a(n) = abs(A020338(n)-A338754(n)).

0, 0, 0, 0, 0, 0, 0, 0, 0, 90, 0, 90, 180, 270, 360, 450, 540, 630, 720, 180, 90, 0, 90, 180, 270, 360, 450, 540, 630, 270, 180, 90, 0, 90, 180, 270, 360, 450, 540, 360, 270, 180, 90, 0, 90, 180, 270, 360, 450, 450, 360, 270, 180, 90, 0, 90, 180, 270, 360, 540, 450, 360, 270, 180, 90, 0, 90, 180, 270, 630, 540, 450, 360, 270, 180, 90

Offset: 1

Author

Nicolas Bělohoubek, Oct 04 2021

Keywords

• nonn
• base
• easy

Comments

All terms are multiples of 90.

Examples

			a(1) = abs(11-11) = 0
a(15) = abs(1515-1155) = 360
a(1965) = abs(19651965-11996655) = 7655310
		

Crossrefs

Cf. A020338, A338754, A010785.

Programs

PARI

a(n)=abs(eval(Str(n, n))-fromdigits(digits(n), 100)*11) \\ Charles R Greathouse IV, Oct 04 2021

Formula

a(A010785(n)) = 0

Extensions

Corrected by Charles R Greathouse IV, Oct 04 2021