29330

Appears in sequences

• Sequence of sums based on primes = 7 mod 8.at n=35A060108
• a(n)= -a(n-1) +5*a(n-2) +5*a(n-3) -a(n-4) -a(n-5).at n=15A107402
• Pentagonal numbers (A000326) whose digit reversal is the product of 2 palindromes greater than 1.at n=17A115703
• Pentagonal numbers (A000326) which are the sum of 2 other positive pentagonal numbers.at n=34A136117
• Binomial transform of [1, 4, 6, 4, 1, 1, -1, 1, -1, 1, ...].at n=24A140227
• Pentagonal numbers which are the arithmetic mean of two consecutive primes.at n=19A234531
• p-INVERT of (1,1,1,1,1,...), where p(S) = 1 - 2 S - 2 S^3.at n=8A291005
• Numbers that are the sum of five fourth powers in exactly three ways.at n=42A344244
• Indices of records in A360519.at n=55A361108
• a(n) = Sum_{k=1..n} (-1)^(k-1) * binomial(k+3,4) * floor(n/k).at n=32A366939
• Pentagonal numbers that are abundant.at n=47A379264
• Pentagonal numbers which are products of four distinct primes.at n=23A381919