A220656 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A220656

The positions of those permutations in A030298 where the first element is not fixed.

3, 6, 7, 8, 9, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Correspondingly, gives the positions of those terms in A030299 whose first digit is not 1, as long as the decimal encoding system employed is valid.

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..5039

FORMULA

a(n) = A003422(1+A084558(n)) + A000142(A084558(n)) + A212598(n).

a(n) = A220655(n)+1.

PROG

(Scheme): (define (A220656 n) (+ (A003422 (+ 1 (A084558 n))) (A000142 (A084558 n)) (A212598 n)))