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A147965
a(n) = n + 1 - A001223(n) = n - A046933(n). In words, a(n) is the difference between n+1 and the n-th gap between primes.
2
1, 1, 2, 1, 4, 3, 6, 5, 4, 9, 6, 9, 12, 11, 10, 11, 16, 13, 16, 19, 16, 19, 18, 17, 22, 25, 24, 27, 26, 17, 28, 27, 32, 25, 34, 31, 32, 35, 34, 35, 40, 33, 42, 41, 44, 35, 36, 45, 48, 47, 46, 51, 44, 49, 50, 51, 56, 53, 56, 59
OFFSET
1,3
MATHEMATICA
Module[{nn=70, prg}, prg=Differences[Prime[Range[nn]]]; #[[2]]-#[[1]]&/@ Thread[{prg, Range[nn-1]}]+1] (* Harvey P. Dale, Nov 21 2021 *)
CROSSREFS
KEYWORD
easy,nonn,less
AUTHOR
Omar E. Pol, Nov 17 2008
EXTENSIONS
Definition corrected by N. J. A. Sloane, Nov 21 2021, at the suggestion of Harvey P. Dale.
STATUS
approved