31275

Appears in sequences

• a(n+1) = a(n)-th composite number, with a(1) = 11.at n=40A059407
• Split positive integers into extending even groups and sum: 1+2, 3+4+5+6, 7+8+9+10+11+12, 13+14+15+16+17+18+19+20, ...at n=25A061317
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (-1, 0, 1), (0, -1, 0), (1, 1, -1), (1, 1, 1)}.at n=8A149779
• Number of nX2 1..3 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order.at n=18A166776
• Number of partitions of n^2+n into parts not greater than n.at n=7A206227
• Consider the number of lines in the Pratt certificate for the n-th prime (A037202). This sequence shows where 2n first occurs.at n=14A244624
• Number of partitions of 7n into 7 parts.at n=9A256287
• a(n) = (1/3)*A291232(n).at n=7A291265