A355727 - OEIS

A355727

First of four consecutive primes p, q, r, s where q*s == p (mod r).

47, 139, 167, 257, 421, 557, 587, 647, 1021, 1051, 1217, 1601, 1759, 2957, 3803, 3911, 4007, 4397, 4423, 4463, 5351, 5471, 6257, 6691, 6857, 6949, 7577, 8081, 9109, 9697, 10223, 10847, 11927, 12101, 12601, 12911, 13669, 13711, 13751, 14537, 14621, 16217, 16607, 16903, 17021, 17359, 17477, 17911

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OFFSET

1,1

COMMENTS

Prime(i) is a term if A001223(i+1)*A001223(i+2) = A001223(i) + A001223(i+1).

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

EXAMPLE

a(3) = 167 is a term because 167, 173, 179, 181 are consecutive primes with 173*181 == 167 (mod 179).

MAPLE

p2:= 2: p3:= 3: p4:=5: count:= 0: R:= NULL:

while count < 100 do