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A241012
Inverse permutation to A109465.
2
1, 2, 4, 6, 8, 3, 10, 12, 14, 5, 16, 7, 18, 9, 11, 20, 22, 13, 24, 15, 17, 19, 26, 21, 28, 23, 30, 25, 32, 27, 34, 36, 29, 31, 33, 35, 38, 37, 39, 41, 40, 42, 43, 44, 46, 48, 45, 50, 47, 52, 54, 56, 49, 58, 60, 62, 64, 66, 51, 53, 55, 68, 70, 57, 72, 59, 61
OFFSET
1,2
PROG
(Haskell)
import Data.List (elemIndex); import Data.Maybe (fromJust)
a241012 = (+ 1) . fromJust . (`elemIndex` a109465_list)
CROSSREFS
Sequence in context: A239887 A354721 A355506 * A355213 A064745 A304090
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Aug 07 2014
STATUS
approved