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A117477 Primes whose SOD and that of their indices are both prime and equal (indices may not be prime, but their SOD must be prime). +0
2
131, 263, 1039, 1091, 1301, 1361, 1433, 2221, 2441, 2591, 2663, 2719, 2803, 3433, 3631, 4153, 4357, 4397, 5507, 5701, 5741, 5927, 6311, 6353, 6553, 6737, 6827, 6971, 7013, 7213, 7411, 7523, 7741, 8821, 9103, 11173, 11353, 11731, 11821, 12277, 12347 (list; graph; listen)
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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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