A098867 - OEIS

A098867

Table(n,2) read by rows such that : 2^(k*(T(n,1)-1)+T(n,2))-1 is 0 mod(T(n,1)) for all integer k >= 0.

3, 0, 7, 3, 23, 11, 31, 5, 31, 25, 47, 23, 127, 7, 127, 35, 127, 49, 127, 77, 127, 91, 127, 119, 167, 83, 223, 37, 223, 185, 233, 29, 233, 87, 233, 145, 233, 203, 263, 131, 359, 179, 383, 191, 431, 43, 431, 129, 431, 301, 431, 387, 439, 73, 439, 365, 479, 239, 503

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..59.

EXAMPLE

2^(1*(7-1)+3) -1 = 511 = 7*73

2^(2*(7-1)+3) -1 = 32767 = 7*4681

2^(3*(7-1)+3) -1 = 2097151 = 7*299593

2^(k*(7-1)+3) -1 = x = 7*j for n=2 T(2,1)=7 T(2,2)=3

CROSSREFS

Sequence in context: A358658 A181163 A363392 * A062253 A290844 A369094

Adjacent sequences: A098864 A098865 A098866 * A098868 A098869 A098870

KEYWORD

nonn,tabf

AUTHOR

Pierre CAMI, Nov 03 2004

STATUS

approved