1,1

All terms >2 are congruent to 7(mod 10). Corresponding n's are: 1, 6, 76, 96, 106, 116, 166, 186, 206, 246, 266, 286, 316, 356, 376, 386, 396, 446, 456, 486, 516, 536, 586, 726, 736, 746, 766, 796, 846, 866, 906, 916, 1036, 1046, 1076, 1116, 1126, 1156, 1176, 1236, 1296, 1316, 1326, 1406, 1456, 1546, 1586, 1596, 1686, 1706, 1786, 1816, 1896, 1926, 1956 all are congruent to 1(mod 5).

Cf. A056578, A123059.

Sequence in context: A139949 A103429 A143659 this_sequence A033147 A124339 A089772

Adjacent sequences: A123097 A123098 A123099 this_sequence A123101 A123102 A123103

nonn

Zak Seidov (zakseidov(AT)yahoo.com), Sep 27 2006