22267

Appears in sequences

• One half of number of non-self-conjugate partitions; also half of number of asymmetric Ferrers graphs with n nodes.at n=41A000701
• Number of partitions of n into an even number of parts.at n=41A027187
• Gaps of 2 in sequence A038593 (upper terms).at n=20A038644
• A list of equal temperaments (equal divisions of the octave) whose nearest scale steps are closer and closer approximations to the ratios of three complementary pairs of simple musical tones: 7/6 and 12/7, 6/5 and 5/3 and 7/5 and 10/7.at n=33A060529
• a(1) = 1; for n > 1, a(n) is the least k > a(n-1) such that a(n) + a(n-1) is square and a(n) - a(n-1) is prime.at n=25A108972
• Number of complete partitions of n.at n=39A126796
• 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, -1, 0), (0, 0, 1), (0, 1, -1), (1, 0, -1)}.at n=11A148499
• Number of partitions of 2n+1 of type OO (see Comments).at n=20A236914
• Number of nX2 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.at n=4A278408
• Number of nX5 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.at n=1A278411
• T(n,k)=Number of nXk 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.at n=16A278414
• T(n,k)=Number of nXk 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.at n=19A278414
• Number of partitions of n into an even number of relatively prime parts.at n=40A339397
• Number of integer partitions of n with reverse-alternating sum < 0.at n=41A344608