28727

Appears in sequences

• Expansion of 1/(1-x^3-x^4-x^5-x^6-x^7).at n=34A017820
• Irregular array read by rows in which row n lists the positive integers k in ascending order for which 1 is in a primitive cycle of n positive integers under iteration by the Collatz-like 3x+k function.at n=39A226618
• Number of partitions p of n such that m(p) = m(c(p)), where m = minimal multiplicity of parts, and c = conjugate.at n=38A240731
• Number of n X 5 0..1 arrays with every element equal to 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.at n=9A298136