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A348774 A348773(2*n+1). 3
2, 6, 12, 18, 24, 32, 42, 48, 60, 68, 74, 84, 98, 104, 110, 128, 138, 150, 158, 168, 180, 192, 198, 212, 228, 234, 242, 258, 270, 278, 284, 308, 314, 332, 348, 354, 368, 380, 390, 402, 420, 432, 440, 450, 462, 468, 488, 500, 510, 524, 548, 564, 572, 588, 600, 608, 618, 632, 644, 654 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
COMMENTS
The first differences are 4, 6, 6, 6, 8, ... and apart from the initial term4, appears to coincide with A155067, the differences between successive odd-indexed primes. If confirmed, this will be one of the few formulas known for A307720.
The other bisection of A348773, A348775, seems much more mysterious.
LINKS
CROSSREFS
Sequence in context: A367504 A304450 A085345 * A265843 A276829 A032371
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Nov 07 2021
STATUS
approved

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Last modified March 2 18:02 EST 2024. Contains 370498 sequences. (Running on oeis4.)