A348186 Decimal expansion of Product_{k>=1} (1 + 1/Pi^k).
1, 5, 2, 1, 3, 6, 0, 1, 5, 0, 5, 2, 2, 5, 8, 4, 0, 6, 0, 4, 5, 5, 1, 3, 8, 7, 0, 8, 4, 0, 2, 2, 9, 8, 2, 4, 4, 9, 0, 5, 4, 8, 2, 8, 9, 4, 9, 9, 6, 8, 4, 1, 5, 3, 2, 4, 1, 3, 2, 3, 5, 2, 8, 1, 2, 8, 1, 9, 3, 9, 7, 3, 3, 7, 6, 8, 4, 9, 9, 9, 5, 2, 5, 0
Offset: 1
Examples
1.52136015052258406045513870840229824490...
Programs
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Maple
evalf(limit(product(1+Pi^(-k), k=1..t), t=infinity), 120);
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Mathematica
Product[1+Pi^(-k), {k, 1, Infinity}] -
PARI
prodinf(k=1,1+Pi^(-k))