A037007 Positions of the digit '9' in the decimal expansion of Pi.

5, 12, 14, 30, 38, 42, 44, 45, 55, 58, 62, 79, 80, 100, 122, 129, 144, 169, 180, 187, 190, 193, 199, 208, 214, 247, 249, 259, 284, 294, 328, 331, 336, 341, 353, 356, 388, 391, 399, 414, 416, 418, 422, 433, 440, 459, 460, 465, 482, 487, 496, 498, 501, 527

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000 (terms 1..369 from M. F. Hasler)

Eric Weisstein's World of Mathematics, Pi Digits.

Index entries for sequences related to the number Pi

Formula

a(n) = A053753(n) - 1. - M. F. Hasler, Mar 20 2017

Mathematica

Flatten @ Position[ RealDigits[Pi - 3, 10, 500][[1]], 9] (* Robert G. Wilson v, Mar 07 2011 *)

Crossrefs

Cf. A036974.

Cf. A053753(n) = a(n) + 1.

Cf. A048940, A096763, and the link to the OEIS index.

Cf. A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037008.

Sequence in context: A286242 A360137 A185871 * A357999 A066025 A009824

Adjacent sequences: A037004 A037005 A037006 * A037008 A037009 A037010

Keyword

nonn,base

Author

Nicolau C. Saldanha (nicolau(AT)mat.puc-rio.br)

Status

approved