A097241 Primes of the form (k+1)*prime(k) + k*prime(k+1).
7, 19, 41, 79, 131, 193, 269, 491, 1303, 2099, 2689, 3643, 6547, 8707, 9931, 11239, 12703, 14939, 16703, 22571, 26317, 33199, 35419, 37493, 39241, 41263, 48371, 52631, 57529, 73681, 84163, 114797, 119129, 133481, 136027, 138373, 151573
Offset: 1
Keywords
Examples
A097240(5) = (5+1)*A000040(5)+5*A000040(5+1) = 6*11+5*13 = 66+65 = 131 = A000040(32), therefore 131 is a term.
Comments