23002

Appears in sequences

• Sequence of sums based on primes = 7 mod 8.at n=32A060108
• Multiples of 7 whose sum of digits is equal to 7.at n=36A063416
• Number of permutations of length n which avoid the patterns 321, 2143, 3124; or avoid the patterns 132, 2314, 4312, etc.at n=41A116731
• Pentagonal numbers (A000326) which are the sum of 2 other positive pentagonal numbers.at n=30A136117
• Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 2 through 4 adjacent terms respectively unique.at n=8A147907
• Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.at n=8A147916
• Least number k having n representations as the sum of the minimal number of biquadrates A002377(k).at n=15A185673
• Base-3 Keith numbers.at n=21A188195
• Numbers n such that n = x + y, sigma_1(n) = sigma_1(x) + sigma_1(y) and sigma_2(n) = sigma_2(x) + sigma_2(y).at n=13A219033
• Pentagonal numbers that are also Niven numbers.at n=33A242043
• Pentagonal numbers which are products of four distinct primes.at n=20A381919