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A099538 Sum of the first n digits of sqrt(2), including the initial "1". 2
1, 5, 6, 10, 12, 13, 16, 21, 27, 29, 32, 39, 42, 42, 51, 56, 56, 60, 68, 76, 76, 77, 83, 91, 99, 106, 108, 112, 114, 114, 123, 129, 138, 146, 146, 153, 161, 166, 172, 181, 187, 194, 195, 203, 210, 215, 218, 225, 231, 240, 244, 252, 252, 259, 262, 263, 270, 276, 282 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

EXAMPLE

sqrt(2)=1.41421356237... so the sums are 1, 1+4, 1+4+1, 1+4+1+4, 1+4+1+4+2,...

which gives 1, 5, 6, 10, 12,...

MATHEMATICA

Accumulate[RealDigits[Sqrt[2], 10, 60][[1]]] (* Harvey P. Dale, May 30 2012 *)

CROSSREFS

Cf. A002193 for digits of sqrt(2). Other sequences like this one for other constants: A099534-A099537, A039918, A046974, A046975.

Sequence in context: A046838 A326418 A037359 * A093614 A093509 A105953

Adjacent sequences:  A099535 A099536 A099537 * A099539 A099540 A099541

KEYWORD

base,easy,nonn

AUTHOR

Mark Hudson (mrmarkhudson(AT)hotmail.com), Oct 22 2004

STATUS

approved

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Last modified October 27 15:27 EDT 2021. Contains 348287 sequences. (Running on oeis4.)