A371747 Decimal expansion of Product_{k>=1} 1 / (1 - 1/4^k).

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

Offset

1,2

Links

Table of n, a(n) for n=1..100.

Formula

Equals 1 / A100221.

Example

1.4523536424495970158347130224852748733612...

Mathematica

RealDigits[1/QPochhammer[1/4, 1/4], 10, 100][[1]]

Crossrefs

Cf. A000302, A065446, A100221, A370466, A371748, A371749, A371750.

Sequence in context: A085548 A329957 A074459 * A155793 A070593 A070599

Adjacent sequences: A371744 A371745 A371746 * A371748 A371749 A371750

Keyword

nonn,cons

Author

Ilya Gutkovskiy, Apr 05 2024

Status

approved