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A350628 Number of ways to write 2*n as 3^i (i >= 1) plus a prime. 5
0, 0, 1, 1, 1, 1, 2, 2, 0, 2, 2, 0, 2, 1, 1, 3, 2, 0, 2, 3, 0, 2, 3, 0, 3, 1, 0, 3, 1, 0, 2, 2, 0, 2, 3, 0, 2, 2, 0, 2, 2, 1, 3, 3, 0, 3, 2, 0, 3, 3, 0, 2, 3, 0, 4, 3, 0, 3, 2, 0, 2, 2, 0, 2, 2, 0, 3, 2, 0, 4, 2, 0, 1, 2, 0, 2, 3, 0, 2, 3, 0, 2, 3, 0, 2, 1, 0, 3, 2, 0, 3, 3, 0, 2, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,7
LINKS
CROSSREFS
Sequence in context: A114700 A353768 A140666 * A202145 A130772 A257076
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Feb 05 2022
STATUS
approved

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Last modified August 30 23:09 EDT 2024. Contains 375550 sequences. (Running on oeis4.)