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A037022 Triangle in which row n has the first n digits of sqrt(n) (truncated). 2
1, 1, 4, 1, 7, 3, 2, 0, 0, 0, 2, 2, 3, 6, 0, 2, 4, 4, 9, 4, 8, 2, 6, 4, 5, 7, 5, 1, 2, 8, 2, 8, 4, 2, 7, 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 3, 1, 6, 2, 2, 7, 7, 6, 6, 0, 3, 3, 1, 6, 6, 2, 4, 7, 9, 0, 3, 3, 4, 6, 4, 1, 0, 1, 6, 1, 5, 1, 3, 3, 6, 0, 5, 5, 5, 1, 2, 7, 5, 4, 6, 3, 3, 7, 4, 1, 6, 5, 7, 3 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

T. D. Noe, Rows n=1..100 of triangle, flattened

EXAMPLE

Triangle starts:

  1;

  1, 4;

  1, 7, 3;

  2, 0, 0, 0;

  2, 2, 3, 6, 0;

  2, 4, 4, 9, 4, 8;

  2, 6, 4, 5, 7, 5, 1;

  ...

MATHEMATICA

row[n_] := RealDigits[Sqrt[n], 10, n][[1]]; Table[row[n], {n, 1, 14}] // Flatten (* Jean-Fran├žois Alcover, Dec 03 2016 *)

CROSSREFS

Cf. A000196 (first column), A023961 (second column), A037023.

Sequence in context: A245838 A158860 A335619 * A037023 A143971 A016688

Adjacent sequences:  A037019 A037020 A037021 * A037023 A037024 A037025

KEYWORD

nonn,base,nice,easy,tabl

AUTHOR

Jonas Persson (jptmp(AT)hotmail.com), N. J. A. Sloane

STATUS

approved

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Last modified March 2 12:24 EST 2021. Contains 341750 sequences. (Running on oeis4.)