[seqfan] A178705

[israel at math.ubc.ca]

A178705 is "Numbers q that are strong pseudoprimes to some base a, 
2<=a<=q-2, such that a^d == 1 mod q"

which I interpret as: odd composite numbers q such that there exists a, 
2<=a<=q-2, such that a^d == 1 mod q where d = A000265(q-1).

However, the Data seem to be missing quite a few such numbers:  

91, 175, 231, 247, 259, 341, 343, 403, 427, 435, 451, 475, 511, 559, 595, 
651, 671, 679, 703, 715, 763, 775, 847, 871, 891, 931, 949, 1015, 1027, 
1035, 1075, 1099, 1111, 1147, 1159, 1183, 1247, 1267, 1271, 1331, 1339, 
1351, 1387, 1431, 1435, 1491, 1495

For example, 91 should be there because 9^45 == 1 (mod 91), and 175 should 
be there because 51^87 = 1 mod 175.

Am I misinterpreting the definition? Is there some reasonable way to define 
a sequence with the given Data? Or should the missing numbers be inserted?

Cheers,
Robert