1,1

If n=13, then n7777777 = 137777777 (prime).

If n=57, then n7777777 = 577777777 (prime).

If n=96, then n7777777 = 967777777 (prime).

Sequence in context: A101849 A141562 A108097 this_sequence A164318 A092738 A115093

Adjacent sequences: A102761 A102762 A102763 this_sequence A102765 A102766 A102767

base,nonn

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Feb 25 2005