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A185024
Numbers occurring in just one row of Pascal's triangle.
5
2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 14, 16, 17, 18, 19, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 71, 72, 73, 74, 75, 76, 77, 79, 80, 81
OFFSET
1,1
FORMULA
A059233(a(n)) = 1.
a(n) = A137905(n-1), n >= 2. - Elijah Beregovsky, May 14 2019
PROG
(Haskell)
import Data.List (elemIndices)
a185024 n = a185024_list !! (n-1)
a185024_list = map (+ 2 ) $ elemIndices 1 a059233_list
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Dec 24 2012
STATUS
approved