

A231099


Primes expressible as phi(sigma(n)) + sigma(phi(n)), in order of their occurrence.


1



2, 3, 5, 7, 13, 19, 23, 37, 47, 31, 67, 109, 71, 79, 139, 127, 139, 163, 227, 199, 443, 379, 313, 271, 547, 367, 619, 547, 593, 643, 523, 739, 619, 1093, 883, 691, 907, 787, 1153, 787, 787, 787, 1867, 1327, 1987, 1231, 1487, 1487, 2731, 2659, 2551, 4327, 4231
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