A329064 Decimal expansion of Sum_{n>=1} 1/(3^n-2^n).

1, 2, 7, 4, 9, 8, 1, 5, 1, 5, 5, 8, 1, 1, 4, 2, 0, 9, 9, 3, 4, 9, 4, 8, 9, 6, 6, 8, 1, 7, 3, 7, 7, 4, 1, 9, 8, 1, 0, 9, 4, 0, 8, 0, 6, 5, 6, 7, 8, 0, 1, 0, 9, 2, 8, 2, 5, 9, 4, 8, 5, 9, 8, 8, 9, 7, 4, 6, 7, 7, 5, 9, 0, 3, 7, 0, 5, 8, 1, 7, 3, 0, 3, 7, 5, 2, 2, 3, 2, 7, 4

Offset: 1

Author

Jianing Song, Nov 03 2019

Keywords

• nonn
• cons

Examples

			1.2749815155811420993...
		

Crossrefs

Cf. A065442 (Sum_{n>=1} 1/(2^n-1)), A214369 (Sum_{n>=1} 1/(3^n-1)).

Cf. A001047 (3^n-2^n).

Programs

Mathematica

RealDigits[Total[Table[1/(3^n-2^n),{n,200}]],10,100][[1]] (* Harvey P. Dale, Nov 27 2024 *)

PARI

default(realprecision, 100); suminf(n=1, 1/(3^n-2^n))