login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A243750
Indices of records in A112801 = number of partitions of 2n-1 into three numbers with two distinct prime factors each.
1
14, 17, 20, 23, 26, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 68, 70, 71, 72, 73, 74, 76, 77, 78, 79, 80, 82, 83, 86, 88, 89, 92, 94, 95, 97, 98, 101, 103, 104, 107, 110, 113, 116, 119, 122, 125, 128, 131, 134, 137, 140, 143, 146, 149, 152, 155
OFFSET
1,1
COMMENTS
It appears that starting from a(64)=104 on, the sequence consists exactly in the numbers (larger than 103) congruent to 2 mod 3.
FORMULA
For n >= 64, a(n) = 3n - 88. (Conjectured.)
PROG
(PARI) m=0; for(i=1, 1000, m<(m=max(A112801(i), m))&&print1(i", "))
CROSSREFS
Sequence in context: A192290 A152010 A352381 * A379902 A046085 A054296
KEYWORD
nonn
AUTHOR
M. F. Hasler, Jun 09 2014
STATUS
approved