(27S) OEIS A137442 & A167390

01052022, 11:44 AM
Post: #1




(27S) OEIS A137442 & A167390
A137442 is the series starting with 1 of alternating smallest previously unlisted square followed by smallest previously unlisted integer, ie
1,2,4,3,9,5,16,6,25,7,36,8,49,10...... A167390 gives the partial sums of A137442, ie 1,3,7,10,19...... Enter the equation below in Solver: enter an integer N & actuate key NTH, the nth member of the series will be displayed. RCL ∑1toN to see the partial sum of the first N members of A137442. Do not actuate key ∑1toN, it can only be used to RCL a value. Code: NTH = IF(L(H:MOD(N:2))+ 

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