Kynea Number

A Kynea number is an integer of the form

.

An equivalent formula is

.

This indicates that a Kynea number is the nth power of 4 plus the (n + 1)th Mersenne number. Kynea numbers were studied by Cletus Emmanuel who named them after a baby girl.

The sequence of Kynea numbers starts with:

7, 23, 79, 287, 1087, 4223, 16639, 66047, 263167, 1050623, 4198399, 16785407, ... (sequence A093069 in OEIS).

Read more about Kynea Number:  Properties, Prime Kynea Numbers

Famous quotes containing the word number:

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