30602

Appears in sequences

• Multiples of 11 with digit sum 11, with no zero digits in odd places.at n=30A083512
• Total number of smallest parts in all partitions of n that do not contain 1 as a part.at n=42A195820
• a(n) = Sum_{i=0..n} digsum_4(i)^4, where digsum_4(i) = A053737(i).at n=52A231667
• Pentagonal numbers that are also Niven numbers.at n=37A242043
• a(n) = (A001359(n+1)^2 - 1)/24, where A001359 = lesser of twin primes; or: pentagonal numbers (A000326) whose indices are twin ranks (A002822).at n=32A308344
• Pentagonal numbers which are products of four distinct primes.at n=24A381919
• Number of integer partitions of n > 0 that are not the first sums of any composition with all parts > 1.at n=38A391620