A021387 Decimal expansion of 1/383.

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

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Comments

The magic square that uses the decimals of 1/383 is fully magic. 19 has the same property (see A021023). For other such primes see A072359. - Michel Marcus, Sep 02 2015

Links

• Wikipedia, Prime reciprocal magic square

Crossrefs

Cf. A021023, A072359.

Programs

Mathematica

x = RealDigits[N[1/383, 120]]; Table[0, {Abs@ Last@ x}]~Join~First@ x (* Michael De Vlieger, Sep 02 2015 *)
realDigitsRecip[383] (* The realDigitsRecip program is at A021200 *) (* Harvey P. Dale, Aug 07 2025 *)

PARI

default(realprecision,2000);1/383.0 \\ Anders Hellström, Sep 02 2015